Model specific catback exhaust, Subaru WRX/STI 2015+. Dyno proven maximum gains of up to 9whp and 8wtq. Extremely aggressive turbo and exhaust tone under acceleration and boost.
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Dyno-proven maximum gains of up to 9 whp and 8 wtq and peak gains of up to 4 whp and 3 wtq using 93 octane fuel while maintaining safe AFRs on the stock tune (2015 WRX w/ CVT)
Extremely aggressive turbo and exhaust tone under acceleration and boost
Mates with the Mishimoto, stock, or most aftermarket downpipes
Installs in under an hour
Designed with oval mufflers to prevent highway drone
Quad 3.5" staggered double wall, polished tips
Full 304 stainless steel mandrel-bent construction
3" to 2.25" exhaust split helps maintain proper exhaust velocity
TIG-welded to perfection
Note:
This product has been designed to fit both manual and CVT transmission vehicles.
Mishimoto does not recommend installing this cat-back exhaust and the Mishimoto Performance Air Intake with the stock ECU programming. It is recommended that the customer is able to retune the vehicle’s ECU after installing the cat-back exhaust and the intake. Power gains will vary depending on the type of ECU tune that is applied to the vehicle.
Application
Fits 2015+ Subaru WRX, 2015+ Subaru STI
Engine Codes FA20DIT, EJ257
Chassis Codes VA, GH
Tech specs:
Diameter 3.0" from 2.bolt flange to y-section 2.25" y-section to mufflers
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