Cobb 04-05 STI Subaru Stage 2 Power Package - cobb613X12 Exhaust At lower engine speeds and

At lower engine speeds and during cruise operation the valves are closed and produce a deeper exhaust note

Sport Exhaust valves open at lower RPMs and hard acceleration

And what's looks without brains

Is it your Accessport or our Accessport

straight-through design maximizes performance

Cobb 04-05 STI Subaru Stage 2 Power Package - cobb613X12 Exhaust At lower engine speeds andThe COBB Stage 2 Power Package is such a simple bolt on and tuning solution for your 04 07 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. Then finish it off with a Stainless Turbo Heatshield and COBB High Flow Filter for your stock