Invidia Down Pipe "Australian Spec" Catless - Subaru WRX/STI GD 01-07 Exhaust It is nearly impossible to

It is nearly impossible to remove the stock pulley without the correct tool

Ideal for Subaru BRZ ZD8 and Toyota GR86 ZN8 builds requiring high-flow fuel delivery for naturally aspirated or forced induction applications

32% HP / +17

Compact Profile: Space-efficient design for tight engine bay installations

What Makes Radium FPDs Unique

Invidia Down Pipe "Australian Spec" Catless - Subaru WRX/STI GD 01-07 Exhaust It is nearly impossible toINVIDIA DOWN PIPE The most restrictive component of the factory exhaust system is the down pipe which begins right after the turbocharger. Invidia Exhausts use a open bellmouth design to completely open up the exhaust flow path out of the turbocharger. This open bellmouth design combined with a larger pipe diameter and smooth bends allows the turbocharger to exhale exhaust gases with fewer restrictions and turbulence. Because of these reasons, Invidia