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while the steel reinforcement prevents collapse when the turbo is drawing maximum vacuum at wide-open throttle
Powder-coated heat shield for optimal air temperatures
This design allows easy independent adjustment of shift knob height and shifter throw length
An included bushing isolates vibrations from the engine block
Perrin - Subaru 04-14 STI - FMIC Air Oil Separator (Neon Yellow) subaru-wrx-2013 while the steel reinforcement preventsOVERVIEW The PERRIN Air Oil Separator traps oil from the crankcase vents before it enters the intake, reduces carbon build up, increases intercooler efficiency, which reduces the chance of performance robbing detonation. NO TUNING REQUIRED Increase horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU
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