Not sure which 2001 GMC Sierra Exhaust, Mufflers & Tips are right for you? We have over 11164 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Installation was easy and stright forward with the exception of the siezed nuts holding the stock system in place. Top quality product, sounds great & plan to add a K&N intake next." —William M from Lansdowne, ON bought a Magnaflow Exhaust Systems for a 2001 GMC Sierra, 1500, regular cab, 6' 6" short bed, 4.8L V8.