Why?

The COBB Stage 2 Power Package is a simple bolt-on and tuning solution for your 2015+ STI! You get the Accessport tuning convenience, a big increase in power and torque from a free-flowing turbo-back exhaust, and a Stage 2 tune! Listen to the intoxicating rumble of the Subaru boxer engine as it emits through our beautiful 3" Stainless Steel exhaust. Finish off the installation with a Stainless Turbo Heatshield. Your Subaru will love you for it!