drawsum
TYF Newbie
I own a 2002 4.8 4x4 tahoe ive added AEM brute force cold air intake aftermarket muffler and a fresh tune up. What im looking to do is find out what other mods im missing out on to get the most out of my 4.8 befor i have Black Bear tune it . Ive herd u you can instal LS-1 exhaust mainfolds but other then that im in the dark.
