Down Pipe "Australian Spec" Catless - Subaru WRX/STI GD 01-07

Down Pipe "Australian Spec" Catless - Subaru WRX/STI GD 01-07INVIDIA 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

When shooting for 600+ horsepower

grade 304 Stainless Steel (with the exception of their titanium systems of course) is selected for all piping

Invidia N1 Exhaust Systems are also designed for the most aggressive looks

all Invidia N1 Exhaust Systems feature large diameter straight cut tips

In some cases Invidia will also offer catless versions for off-road use where every ounce of performance is required

The G5 Titan systems are manufactured using state of the art mandrel bending machines to create one continuous piece with no ‘lobster back’ bends for unrivalled exhaust gas flow

Increases horsepower and torque

Lifetime Warranty covers:

Catalytic Convertors (2 Years warranty)

and long lasting strength

Hole spacing 78mm centre to centre

The R400 muffler design also looks great with a race inspired design that will turn heads