GrimmSpeed Catted Downpipe 2008-2021 STI / 2008-2014 WRX
GrimmSpeed Catted Downpipe 2008-2021 STI / 2008-2014 WRX
GrimmSpeed Catted Downpipe 2008-2021 STI / 2008-2014 WRX
GrimmSpeed Catted Downpipe 2008-2021 STI / 2008-2014 WRX
GrimmSpeed Catted Downpipe 2008-2021 STI / 2008-2014 WRX

GrimmSpeed Catted Downpipe 2008-2021 STI / 2008-2014 WRX

GRM007091

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$739.00

Special order item. available for purchase, wait times vary.

GrimmSpeed knows how important efficient exhaust flow is and designed their catted downpipe to improve just that. GrimmSpeed uses 3D scans of multiple OEM downpipes to account for any variances within stock parts, and perfect the fitment on theirs. The tig welded downpipe starts with CNC’d mandrel bent 16ga 304L stainless steel tubing and 1/2 “ flanges to ensure durability. The divorced wastegate was located with CFD simulations to confirm optimal flow is achieved. It is then reintroduced to the exhaust flow before flowing through the custom sized 300 cell cat.
DETAILS:
  • Made in the USA
  • 3” Tubing
  • High Flow 300 cell Cat
  • Divorced Wastegate For Increased Flow
  • Gaskets Included
  • O2 Bungs for OEM Sensors and Wideband
  • 304L Stainless Steel Tubing

    Fitments:

    • 2008-2014 WRX
    • 2008-2021 STI
    • 2005-2009 Legacy GT / Outback XT (Manual Trans Only)
    • 2009-2013 Forester XT

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