R400 70mm Engine Back Exhaust w/Invidia Equal Headers - Subaru BRZ & Toyota 86 12-21, 22+ (6MT) 22+ Nissan Z The most restrictive component of

The most restrictive component of the factory exhaust system is the down-pipe which begins right after the turbocharger

INVIDIA R400 CAT BACK EXHAUST

There are many other technical aspects such as "scavenging effect" which are beyond the scope of this document

minimizing bends

Invidia Q300 HS12SSTG3S (60mm only)

R400 70mm Engine Back Exhaust w/Invidia Equal Headers - Subaru BRZ & Toyota 86 12-21, 22+ (6MT) 22+ Nissan Z The most restrictive component ofNote: Suits Manual Transmission Only INVIDIA EQUAL LENGTH HEADERS Unleash maximum engine performance with Invidia S304 Stainless Steel Equal (Tuned) Length Catless Headers. These headers dramatically reduce the restriction of the factory system and will provide more horsepower and torque to the FA20 motor. Includes a Check Engine Light (CEL) fix module to prevent the common Check Engine Light when using aftermarket headers with a factory tune (caused