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This header features Unequal Tube lengths to accentuate the iconic Boxer Rumble
It produced an amazing estimated 32 horsepower maximum increase at the wheels of an otherwise stock 2015 Subaru WRX STi
PERRIN Super Shift Stop for PERRIN Short Throw Shifter - 2018-2024 Subaru WRX
Cobb Stg 1+ Drivetrain Pkg (Weighted Knob) - Black - 2004-2021 Subaru STI 6MT Subaru-WRX-2010 TYPE-R TYPE-D withSoundReducer verThe Uppipe: The Restriction Between the Engine and the Turbo The Cobb Stainless Steel Uppipe for the Subaru replaces the restrictive factory unit between the exhaust manifold and the turbocharger. The factory uppipe contains a flex section that collapses over time and a catalytic converter that restricts exhaust flow before it reaches the turbine wheel. The Cobb uppipe removes both restrictions, improving exhaust gas flow to the turbine and reducing