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  • HyperFlow Down Pipe - Cattless (Forester SF 98-02)
  • HyperFlow Down Pipe - Cattless (Forester SF 98-02)
  • HyperFlow Down Pipe - Cattless (Forester SF 98-02)
  • HyperFlow Down Pipe - Cattless (Forester SF 98-02)

HyperFlow Down Pipe - Cattless (Forester SF 98-02)

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The Hyperflow Exhaust 01-07 WRX/STI downpipe with catless racepipe uses a massive cast 304 Stainless Steel Bellmouth that tapers to 3.0" piping where it connects to the cat-pipe. This two-piece design allows you to remove the racepipe and add in a high flow catalytic converter without replacing the entire down-pipe assembly.

Features Includes:

  • Delete the racepipe without having to buy a whole new downpipe (Catless Race Pipe WS-CP-V2 sold separately)
  • Easier installation
  • Cast 304 Stainless Steel Bellmouth upper section for maximum exhaust gas flow
  • 3.5 inch diameter 304 Stainless Steel pipe tapering smoothly to 3.0 inch
  • Spare wideband oxygen sensor bung included
  • Modified pipe path to provide more ground clearance for lowered cars than previous design
  • TIG welded and polished to a show quality finish