Injen SES1205DP - Performance Down-Pipe with CAT, Part No. SES1205DP, 2008-2014 Subaru Impreza WRX STI H4-2.5L Turbo, 2015-2020 Subaru WRX STI H4-2.5L Turbo, 2008-2014 Subaru Impreza WRX H4-2.5L Turbo.

Injen Technology has examined the stock down-pipe and found prominent potential on improving the OE design by using mandrel bent stainless steel for optimum flow and corrosion resistance. TIG-welded by hand for race proven durability and endurance and eliminating any possibility of cracking during heat cycles. All of the Injen downpipes are uniquely designed to increase exhaust velocity for improved horsepower and torque. Just like all of our other performance parts, we dyno test our Down Pipes in-house and proudly build them in Pomona, CA.,

Features

• High Performance downpipe with included hi-flow catalytic convertor
• For a racing downpipe without a catalytic convertor, please use Injen's SES1204DP
• Does not fit 2015+ WRX Models ? STI only for 2015+
• Dyno Proven gains of up to 24 hp and 12 lb-ft. of torque
• Full 76MM piping made from premium 304 SS Mandrel-Bent Tubing
• Beautiful CAD Designed 304 stainless steel investment cast turbo bellow
• Turbo Bellow is a divorced-style design to reduce turbulence and improve performance
• Turbo Bellow includes the upper O2 sensor bung
• Hand Crafted and TIG Welded to Perfection for Strength and Durability
• Designed and Manufactured in Pomona, CA
• Note: This Part kit is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles.