Invidia Q300 Catback Exhaust WRX / STI (2015-2018) Legacy GT Engine (10-up) This is the simplest and

This is the simplest and best alternative or option to chip tuning

or Bold Gold

Whiteline performance end links for the Evolution are the perfect compliment to any sway bar combination

T-6 aluminum alloy intake is finished off with an Injen performance dry air filter with built-in velocity stack

As the name suggests

Invidia Q300 Catback Exhaust WRX / STI (2015-2018) Legacy GT Engine (10-up) This is the simplest andInvidia's new Q300 catback exhaust system for the 2015+ WRX STI provides a great alternative to the standard N1 style exhaust system without compromising power or quality. Traditionally, if you wanted a quieter exhaust system, you had to sacrifice performance to get there. Enter the Q300 series performance exhaust for the 2015+ WRX STI from Invidia. Q300 exhaust systems utilize specially sized resonators and muffler baffles to maintain power output