Reviewed By Kevin B (Casper, WY) Reviewed for a 2002 GMC Sierra —5/17/2015 6:47 PM
Easy to install. Getting 4 mpg better fuel mileage. Noticeably runs better. Will be switching back and forth to original when the winter weather returns. At a certain rpm the exhaust notice gets a little annoying, only down side. I just step on the gas a little more when that occurs.