Originally Posted by wstar (Post 85183)

Nah most of the reasonably-priced catbacks will be heavier than stock if they're adding power. They kinda have to be, because they're adding more diameter of piping throughout. That said, the weight is down low and to the rear, which is helpful for the car's balance anyways. If you want to shed weight in the exhaust, you'd probably have to buy one of the (much more expensive) Ti exhausts.

Originally Posted by Josh@STILLEN (Post 85394)

As posted in another thread, I apologize FricFrac that you got some incorrect information regarding the STILLEN cat-back exhaust. Here's the weights of both systems.

Stock Exhaust

Muffler Section - 26.8lbs (highly inefficient)
Y-Pipe - 11.6lbs
Resonated Y-Pipe - 15.6lbs
Total: 54.0lbs

STILLEN Exhaust

Muffler Section - 39.6lbs (proven huge hp gains)
Y-Pipe - 11.3lbs
Resonated Y-Pipe - 14.4lbs
Total: 65.3lbs

Difference: +11.3lbs and 18whp

Also note that the weight is at the lowest point of the car, over the rear wheels, which will increase traction.

Originally Posted by FricFrac (Post 85650)

Thanks I also got a call from Dean stating the info he gave me was on the shipping weight so just a little "lost in translation". Another reason why I'm more than happy to be dealing with Stillen - you guys are very much involved in the development and performance of your parts AND you care about what the consumer wants. Thanks for the correction!