I believe stock pipe is 2.57 so a 3 in 3 out should be good, thats what i have
muffler size
i have a 2002 silverado c1500 with the 4.8 and im looking to get a flowmaster super 40 muffler but i dont know what size exhaust i have so if any1 can help it would be great
1 - 1 of 5 Posts
1 - 1 of 5 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
GMC Truck Forum
A forum community dedicated to GMC and Chevy full size owners and enthusiasts. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more!
Full Forum Listing
Explore Our Forums
Recommended Communities
