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Aftermarket Performance Parts for the Sti
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AQ MOTORSPORTS CATTED DOWNPIPE 04-07 WRX/STI
PRODUCT OVERVIEW
The AQ Motorsports downpipe with hi-flow cat substantially improves performance and responsiveness by replacing the 2 restrictive factory cats with 1 high flow unit. The cast bellmouth design greatly reduces restriction at the turbo outlet and flows into 3" mandrel bent piping. An O2 bung is included on the bellmouth allowing for easy installation of an aftermarket AFR guage. The 200 cell metal-substrate high flow cat offers very little restriction and is the same part that is used on our 510 wheel horsepower time attack car. The downpipe to catback flange is a full 3" design for optimal flow.
Features:
# Cast Bellmouth Housing w/ 02 bung for secondary sensor install
# 3″304SS Piping
# 200 Cell Metal-substrate Catlytic Converter (same as our TimeAttack STI)
# TIG Welded
# True 3″ Oulet
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stiperformanceparts.com is not a subaru authorized sti parts dealer or repair facility. stiperformanceparts.com is not affiliated, related to, or endorsed by Subaru of America or Fuji Heavy Industries LTD in any way. stiperformanceparts.com is an independent retailer of performance parts and accessories that is not affiliated with Subaru of America (Fuji Heavy Industries LTD). Use of trademarks is done on a fair use basis and without intent to compete with, or take advantage of Subaru or its trademarks. For more information on Subaru please visit http://www.subaru.com
