{"title":"BL\/BP Intake","description":null,"products":[{"product_id":"process-west-cold-air-intake-cai-liberty-gt-04-09","title":"Process West - Cold Air Intake (CAI) - (Liberty GT 07-09)","description":"\u003cp\u003eDesigned to replace the restrictive factory air intake tract.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFabricated from lightweight CNC mandrel bent aluminum tube and has a CNC machined air flow meter mount.\u003c\/p\u003e\n\u003cp\u003eComes complete with a K\u0026amp;N high flow air filter which is enclosed in the inner guard.\u003c\/p\u003e\n\u003cli\u003ePowdercoated black for a factory-look finish.\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Process West","offers":[{"title":"Default Title","offer_id":2448399859741,"sku":"PWCAI09","price":660.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/products\/PWCAI09.jpg?v=1533098900"},{"product_id":"copy-of-psr-silicon-intake-throttle-body-hose-liberty-gt-06-09-black","title":"PSR - Silicon Intake - Throttle Body Hose (Liberty GT 06-09) BLACK","description":"PSR - Silicon Intake - Throttle Body Hose (Liberty GT 06-09) BLACK","brand":"PSR","offers":[{"title":"Default Title","offer_id":12334423539802,"sku":"PSR-SUB-ITBHBK","price":99.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/products\/PSR-SUB-ITBHBK_52425360-8979-4842-a453-01f3d428117c.jpg?v=1533701230"},{"product_id":"cobb-tuning-sf-intake-system-w-airbox-liberty-gt-04-09","title":"Cobb Tuning - SF Intake System w\/Airbox - (Liberty GT 05-09)","description":"\u003cp class=\"accordion--simple__article\"\u003e\u003cspan style=\"color: #f71313;\"\u003e\u003cstrong\u003eNOTE : Single Scroll Turbo setup.\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eThis C.A.R.B. approved intake and integrated airbox looks great and has the combined benefits of a short ram intake and a cold air intake without any of the negatives. This system utilizes several unique features in an effort to maintain optimal flow for performance while minimizing turbulence that can cause engine management problems. From a custom conical cloth air-filter element, we use a CFD-designed velocity stack leading to an unique air flow straightener grid. This straightener grid is specifically designed to smooth the incoming air flow as it passes the Mass Air Flow sensor for precise readings. This eliminates the \"dead spots\" experienced by other aftermarket intakes due to turbulence. No other aftermarket Subaru intake system utilizes these critical design elements. In order to provide a system that looks as good on the outside as the technical advancements happening on the inside, we utilize a one piece design constructed from a high temperature plastic composite. Not only does this save weight compared to the previous metal design, the plastic composite material offers much better heat rejection properties that help keep intake air temperatures cooler. In contrast, intake systems constructed using metal castings or piping can actually retain underhood heat and in turn heat the incoming air. The SF Air Box adds the benefits of a cold air intake to the outstanding performance of the SF Intake. The factory inlet directs cold air from the front grill to the SF Air, which encloses the SF intake. Hot engine bay air that robs horsepower is prevented from entering the intake system. This unique design also separates rainwater from the intake air, eliminating the water ingestion issues that plague in-fender cold air intakes. NOTE: As with all aftermarket intakes for 08+ Subaru STIs and WRXs, appropriate tuning is required for safe engine performance. COBB Tuning offers Accessport Off-The-Shelf (OTS) maps optimized for the SF Intake.\u003c\/p\u003e\n\u003cp class=\"accordion--simple__article\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"accordion--simple__label\" id=\"why\"\u003eWhy?\u003c\/h3\u003e\n\u003cp class=\"accordion--simple__article\"\u003eSetting the standard for MAF style intakes with a velocity stack, airflow straighteners and composite body for ultimate performance. Feed your SF Intake cold air using the Subaru factory snorkel. The SF Airbox turns your SF Intake into a cold air intake with OEM looks and fit.\u003c\/p\u003e\n\u003cdiv class=\"accordion--simple\"\u003e\n\u003ch6 class=\"accordion--simple__label\" id=\"features\"\u003e\u003cbr\u003e\u003c\/h6\u003e\n\u003cdiv class=\"accordion--simple__article\"\u003e\n\u003cstrong\u003e\u003cb\u003eSubaru SF Intake + SF Airbox for '05-'09 LGT\u003c\/b\u003e\u003c\/strong\u003e\n\u003cul class=\"no-b-margin\"\u003e\n\u003cli\u003eComposite Intake Body for Heat Rejection\u003c\/li\u003e\n\u003cli\u003e4-ply Steel Reinforced Silicone Post-MAF\u003c\/li\u003e\n\u003cli\u003e16 Gauge Aluminum Airbox\u003c\/li\u003e\n\u003cli\u003ePre-Oiled, Cleanable, Reusable Custom Filter Element\u003c\/li\u003e\n\u003cli\u003eUtilizes Factory Snorkel for Cold Air Feed\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"DC Jap Automotive","offers":[{"title":"Default Title","offer_id":31882163454042,"sku":"724300 (724100 \u0026 724160)","price":983.13,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/products\/cobb-intake-2015-sti-1.jpg?v=1604880215"},{"product_id":"cobb-tuning-silicone-turbo-inlet-liberty-gt-04-09","title":"Cobb Tuning - Silicone Turbo Inlet - Liberty GT (04-09)","description":"\u003cp\u003eConstructed of black 5-ply silicone, the COBB Turbo Inlet is a direct replacement for your 2008-2014 WRX, 2004-2009 Liberty GT, 2008-2013 Forester SH XT or 2004-2009 Outback XT! The custom silicone construction of the COBB Turbo Inlet rejects high engine bay temperatures and keeps the intake air closer to ambient temperature. The steel wire reinforced design eliminates the issue of hose collapse that other inlet hoses suffer under vacuum at peak demand, yet allows adequate flex between the engine and the intake.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUtilizing the COBB Turbo Inlet will eliminate the factory 'accordion-style' hose that can cause turbulence in the intake tract. Increasing the efficiency of the inlet will reduce stress on the engine as it is able to breathe much easier with a higher-flowing intake path.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-Ply Silicone in Stealth Black\u003c\/li\u003e\n\u003cli\u003eLarger Diameter Allows for Increased Potential Air Flow Delivery to the Turbo\u003c\/li\u003e\n\u003cli\u003eIncrease Horsepower, Decrease Turbo Spool Time, Improve Throttle Response and Acceleration\u003c\/li\u003e\n\u003cli\u003eDirect OEM Replacement\u003c\/li\u003e\n\u003cli\u003eDesign for Standard Sized Inlets on the Turbo of 2.4\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"cobb","offers":[{"title":"Default Title","offer_id":31889248976986,"sku":"724450-BK","price":539.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/products\/724400-BK_f2b3a1e8-3824-45dc-80b2-929861c15c94.jpg?v=1581900853"},{"product_id":"cobb-tuning-sf-intake-system-liberty-gt-04-09","title":"Cobb Tuning - SF Intake System - Liberty GT (06-09)","description":"\u003cp\u003e Increased Power The C.A.R.B certified COBB Tuning SF Intake removes a pre-turbo restriction in the stock intake system. The SF Intake intake system utilizes several unique features in an effort to maintain optimal flow for performance while minimizing turbulence that can cause engine management problems. From a custom conical cloth air-filter element, a CFD-designed velocity stack leads to an unique air flow straightener grid designed to smooth the incoming air flow as it passes the Mass Air Flow sensor for precise readings. The intake utilizes a one piece design constructed from a high temperature plastic composite, saving weight and reducing heat transfer. Increased Induction Sound Enjoy the increased snarl from your engine and hear the turbo spool more clearly with the addition of the COBB Tuning SF Intake system. Turbocharger induction noise and bypass valve venting sound is much more audible using this intake system. Easy to Install The COBB Tuning SF Intake was designed to be easy to install without having to modify your car. Installation requires no cutting or trimming of any components and can be completed with simple hand tools. Simply remove the stock airbox and bolt the SF intake into place in just minutes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNOTE: Requires custom tuning.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSetting the standard for MAF style intakes with a velocity stack, airflow straighteners and composite body for ultimate performance.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComposite Intake Body for Heat Rejection\u003c\/li\u003e\n\u003cli\u003eIntegrated Velocity Stack\u003c\/li\u003e\n\u003cli\u003eIntegrated Airflow Straighteners\u003c\/li\u003e\n\u003cli\u003e4-ply Steel Reinforced Silicone Post-MAF\u003c\/li\u003e\n\u003cli\u003eInduction and Engine Sounds More Audible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"DC Jap Automotive","offers":[{"title":"Default Title","offer_id":31889260839002,"sku":"724300 - (724100 + 724160)","price":983.13,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/products\/724100.jpg?v=1581901369"},{"product_id":"psr-silicon-intake-throttle-body-hose-liberty-gt-06-09-red","title":"PSR - Silicon Intake - Throttle Body Hose (Liberty GT 06-09) Red","description":"PSR - Silicon Intake - Throttle Body Hose (Liberty GT 06-09) RED","brand":"PSR","offers":[{"title":"Default Title","offer_id":37160728264866,"sku":"PSR-SUB-ITBHRD","price":99.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/products\/PSR-SUB-ITBHRD_75f10a66-6363-4fba-bbeb-04a152b43115.jpg?v=1606886220"},{"product_id":"cobb-tuning-tmic-coupler-liberty-gt-04-14","title":"Cobb Tuning - TMIC Coupler -  Liberty GT (04-14)","description":"\u003cp\u003eThe COBB TMIC Coupler replaces the leak-prone factory hose and looks good while doing so! Over time the factory hoses become brittle and crack. The COBB TMIC Coupler is constructed of 4-ply Silicone and fits securely with lined worm drive clamps. The gloss black finish with COBB logo keep things looking tidy in the engine bay.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHave you taken your throttle body coupler off one too many times? Has it seen better days? Why not add a little flair to your engine bay with the new COBB TMIC coupler? It's a drop-in replacement for the factory unit that will stay put and look great doing it!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4-Ply Silicone in Stealth Black\u003c\/li\u003e\n\u003cli\u003ePad Printed COBB Logo\u003c\/li\u003e\n\u003cli\u003eLined Worm Drive Clamps\u003c\/li\u003e\n\u003cli\u003eDrop-in Replacement\u003c\/li\u003e\n\u003cli\u003eWorks with Stock or Aftermarket Top Mount Intercoolers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e","brand":"DC Jap Automotive","offers":[{"title":"Default Title","offer_id":39802828849314,"sku":"724455","price":151.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/products\/724455_a070340e-9ba5-4db5-8c2d-cfd96285ab68.jpg?v=1619749101"},{"product_id":"psr-silicon-inlet-black-liberty-06-09","title":"PSR - Silicon Inlet - Black (Liberty 04-09)","description":"\u003cp\u003e\u003cspan style=\"font-size: small;\"\u003ePSR Silicon inlets are one of the leading inlets on the market. Known for one of the best Flowing, Strongest and best fitting Inlets around. We have been selling the PSR Inlets for over 7 years and we continuely are striving to improve the charateristics and performance.  PSR Inlets all come with a \u003cstrong\u003eLIFETIME WARRANTY\u003c\/strong\u003e and Guarenteed never to suck in or fail\/split. All fitting are now made from BRASS which improves flow and strength. 5 PLY SIlicon, Reinforcement wire internally and extra reinforcement around the known areas where other inlets fail. We have sold over 1500 of these over 7 years and we are proud to still have a 0% fail rate. On the WRX\/STIs we have seen an improvemnt of 10kw just by adding a silicon inlet\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: small;\"\u003eLife Time Warranty\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: small;\"\u003eUSA and GERMAN Made Silicon\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: small;\"\u003e0% fail rate.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: small;\"\u003eGaurenteed Not to fail or split.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: small;\"\u003eNumber 1 Inlet on the market.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: small;\"\u003eWe will stand by our Inlet. This is NOT THE SAME INLETS AS SEEN ON EBAY\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"PSR","offers":[{"title":"Default Title","offer_id":39980310102178,"sku":"FQ-GRB-INTAKE2","price":199.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/products\/333_69a66247-4294-4687-ac58-1b4c39996340.jpg?v=1621897407"},{"product_id":"aeroflow-high-flow-filter-replacement-for-process-west-cai","title":"Aeroflow - High Flow Filter - Replacement for Process West CAI","description":"\u003cspan data-mce-fragment=\"1\"\u003e\u003cspan style=\"color: #ff2a00;\"\u003eDirect Replacement for the K\u0026amp;N high flow air filter on Process west Cold Air Intakes.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e Aeroflow Pod filters are manufactured from a high temp Polyurethane material. Featuring an aesthetic 4-layer cotton black design, these are perfect for any aftermarket applications. With increased air flow, these Aeroflow Pod Filters are designed to increase performance. These filters are reusable\/washable, hence saving you money and protecting the environment. We have the newest technologies in air filter manufacturing that allows us to provide you with what we feel is the highest quality filter at a great price. Get an Aeroflow Pod Filter today and experience the Aeroflow difference!\u003c\/span\u003e","brand":"DC Jap Automotive","offers":[{"title":"Default Title","offer_id":41000946696354,"sku":"AF2711-0930","price":99.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/products\/AF2711-0930_jpg.jpg?v=1637673822"},{"product_id":"cobb-tuning-sf-intake-replacement-filter","title":"Cobb Tuning - SF Intake Replacement Filter","description":"\u003cp data-mce-fragment=\"1\"\u003eThe filter element that originally came with your SF Intake is cleanable and can be reused for the life of your car. However, should your filter element become damaged, this is the replacement part.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eFilter for all Subaru (Excluding 15+ WRX) and MS3 SF Intake 712100,715100,724100,771500\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSF Intake Replacement Filter\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWashable\/Reusable Cotton Woven Media\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIncreased Air Flow While Maintaining Filtering Efficiency\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePre-Oiled\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLong Life\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DC Jap Automotive","offers":[{"title":"Default Title","offer_id":42986373677313,"sku":"712101","price":123.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/products\/712101_main.jpg?v=1655273637"},{"product_id":"k-n-high-flow-panel-air-filter-liberty-gt-03-09","title":"K\u0026N High Flow Panel Air Filter - Liberty GT (03-09)","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eK\u0026amp;N's replacement air filters\u003c\/span\u003e\u003cspan\u003e are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for virtually every vehicle on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K\u0026amp;N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K\u0026amp;N Million-Mile Limited Warranty™ and will be THE LAST AIR FILTER YOUR VEHICLE WILL EVER NEED.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned to boost horsepower and rate of acceleration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eCan be cleaned and used again\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eHigh air flow with exceptional filtration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eLasts up to 50,000 miles before cleaning is required depending on driving conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eWorks with original equipment manufacturer vehicle electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eWill NOT void vehicle warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eMillion Mile Limited Warranty®\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Aeroflow","offers":[{"title":"Default Title","offer_id":44845461471489,"sku":"33-2304","price":109.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/files\/733619_4_d18bf50a-66fa-4b97-8832-d5ba9192dbe8.jpg?v=1712882857"},{"product_id":"grimmspeed-dry-con-panel-air-filter-liberty-gt-04-17","title":"GrimmSpeed Dry-Con Panel Air Filter - Liberty GT (04-17)","description":"\u003cp\u003eAt GrimmSpeed we know that not everyone is ready for one of our full aftermarket intake systems, but still wants a safe and easy way to increase power with no tuning required. We worked hard to develop a direct replacement, dry-element air filter for the stock airbox that not only decreases restriction, producing more torque and horsepower, but is also able to filter out particulates at the same level as the OEM filter to keep your engine safe.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQUICK SPECS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect OE Replacement – Drops right into the OEM airbox for an easy install\u003c\/li\u003e\n\u003cli\u003eOil-Free Element – Dry-Con means more reliability and easier maintenance\u003c\/li\u003e\n\u003cli\u003eProven Performance: Designed in the Lab, Proven on the Dyno\n\u003cul\u003e\n\u003cli\u003eTested +9 TQ and +6 WHP – Safe, reliable power gains\u003c\/li\u003e\n\u003cli\u003e62% Better Flow than OEM – More flow\/less restriction, equals more power\u003c\/li\u003e\n\u003cli\u003e99.1% Efficiency – Filters at the same level as OEM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eLong Service Life – Up to 20K mile service interval\u003c\/li\u003e\n\u003cli\u003eServiceable\/Reusable – Simple refresh using popular cleaning kits\u003c\/li\u003e\n\u003cli\u003eNo Tune Required – Simply drop in and enjoy more safe, reliable power!\u003c\/li\u003e\n\u003cli\u003e1 Year Warranty – Worry free, heavy-duty construction\u003c\/li\u003e\n\u003cli\u003e100% Made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWHY CHOOSE GRIMMSPEED?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFilter design is a delicate balancing act, the overall goal of creating a good air filter is to find the ideal combination of flow, filtration efficiency and holding capacity. There IS a difference between simply making a unit that fits in a factory intake box and engineering a performance air filter.\u003c\/p\u003e\n\u003cp\u003eSome air filters are constructed with a cotton or synthetic media combined with an oil to increase filtering ability. This can increase flow, however it also means more difficult filter maintenance because of the need to properly re-oil the filter. We decided to use a dry-construction media, utilizing two different layers of synthetic material with varied filtering and flow abilities, resulting in very similar flow capability to the oiled media while maintaining the same filtering efficiency. Since other important variables in air filter design including the pleat pitch, count and depth can make or break the performance of a filter, extensive testing was required.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTESTING\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe contracted a 3rd party OEM Test Lab using SAE-5011 OEM Air Filter Standards for our initial filter designs. All of these were the same size and fitment, but used varied filter media including pleat pitch, count, depth, material and construction.\u003c\/p\u003e\n\u003cp\u003eThe first data set explores pressure drop across the filter before and after saturation since it directly relates to the performance potential of the filter. Chart 1 shows that the pressure drop of all clean and dirty filters was very similar, identifying the filtering ability of each panel. The next data set focuses on the filtration ability in each filter; Chart 2 illustrates that filters A and B allowed far too much of the test dust to flow through, with filter C being the optimal candidate for additional performance-based testing. We took the general construction of this unit and modified it into 3 different pleat variations.\u003c\/p\u003e\n\u003cp\u003eSince ultimate performance of an air filter is based on its flow ability, we wanted to see how different pleat packs would compare to the OEM filter in terms of CFM through the filter as well as dust capacity. Chart 3 illustrates that as flow increases, capacity decreases. We see that the performance of the filters has substantially increased over the OEM unit, at the slight cost of reduction in dust capacity. Arguably the most important criteria of the filter is its ability to resist the flow of contaminants. The OEM filter was found to filter at 99.7%, with all three of our test filters scoring almost identically with 99.2% or above as illustrated in chart 4. All of these filters would be exceptional choices.\u003c\/p\u003e\n\u003cp\u003eAfter this very comprehensive testing, we were able to select a design that meets the GrimmSpeed standard and best balanced the ultimate flow potential with the dust holding capacity as illustrated in Chart 5. This filter maintains the same efficiency as OEM, but has an increase in CFM by 62%. The reduction in dust holding capacity is an acceptable middle ground between the filter choices and will still retain a lengthy maintenance interval.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDYNO TESTING\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn order to properly evaluate the performance gains of The GrimmSpeed Dry-Con Air Filters, we did four wide open throttle pulls with the OEM air filter, then four more with our unit on a 2021 factory-tuned STI test car. The outlier run was thrown out and results were averaged as shown in Chart 6. We can see a solid 9 ft\/lbs of torque difference and a consistent 6 whp gain from 5400rpm until redline with the GrimmSpeed filters. There is reduction in restriction in the top end that shows well here and has a direct relation to the performance of the air filter.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCONCLUSION\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe GrimmSpeed Dry-Con Air Filter flows an amazing 62% better than OEM, features a 99.2% efficiency and is easy to service without the added hassle of proper re-oiling. Through testing, we saw an increase of 9 ft\/lbs of torque and 6 whp at the top end of the RPM range with no engine tuning involved.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2008-2014 Subaru WRX\u003c\/li\u003e\n\u003cli\u003e2015-2021 Subaru WRX\u003c\/li\u003e\n\u003cli\u003e2008-2014 Subaru STI\u003c\/li\u003e\n\u003cli\u003e2015-2021 Subaru STI\u003c\/li\u003e\n\u003cli\u003e2008-2013 Subaru Forester XT SH\u003c\/li\u003e\n\u003cli\u003e2013-2018 Subaru Forester XT SJ\u003c\/li\u003e\n\u003cli\u003e2004-2009 Subaru Liberty GT BL\/BP\u003c\/li\u003e\n\u003cli\u003e2010-2014 Subaru Liberty GT BM\/BR\u003c\/li\u003e\n\u003cli\u003e2014-2017 Subaru Liberty GT BN\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Aeroflow","offers":[{"title":"Default Title","offer_id":45069633782017,"sku":"060091","price":114.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/files\/060089_2.jpg?v=1714519400"}],"url":"https:\/\/dcjapautomotive.com\/collections\/bl-bp-intake.oembed","provider":"DC Jap Automotive","version":"1.0","type":"link"}