3.5 inch stainless constant-diameter direct-fit cat-back exhaust cuts backpressure up to 94 percent and improves 0-60 mph acceleration times by 4.5 percent. Banks 3.5 inch constant-diameter Monster exhaust pipes - formed of heavy-duty stainless steel - bolt behind the catalytic converter to slash backpressure up to 94 percent, improving 0-60 mph acceleration times by 1/3 of a second (4.5 percent quicker). The straight-through 3.5 inch Monster muffler delivers a throaty, yet civil, exhaust note and more than doubles stock flow (up to a 141 percent improvement). Huge ob-round (patented design) stainless angle-cut rolled-edge tip in your choice of polished chrome-over stainless or high-temp black. And to help keep it looking good, there's a 1/2 inch air gap to keep heat from tarnishing the finish. An adjustable clamp lets you position it on the tailpipe just right. Fully compatible with GM's factory warranty, the entire system is covered by Banks 5-Year Limited Warranty. Single exhaust with side or rear exit. (Exit options dependent upon application)