if you dont have a tune already it would be a good idea to get one, and have it tuned for the headers anyways so you get the most out of them. if blackbear performance was around when i got my tune i would have deffinitly got one from there than nelson performance which is more than double the money and its not even a data logging tune which is better...
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!