If you're looking for the ultimate in factory performance, nothing comes close to the Corvette ... the ZR1 should have a set of pipes as awe inspiring as the rest of the vehicle. Luckily, Corsa ...

On top of (reportedly) improving the Corvette’s exhaust rumble, Corsa also developed an optional Double Helixx X-Pipe that the company says is able to provide an additional 6 hp and 2-4 lb-ft ...