I have a 2003 gmc yukon with 22" wheels and killer stereo. Its time to upgrade for some performance. Need some help on what to do. I what like to put a 40 series flowmaster with a single in dual out, headers, and a k&n cold air intake. and a throttle body spacer. I would also like to get a tune or a hypertech lll programmer. I dont want to get to crazy as this is my daily driver and it need to be reliable. Some please help me with what to do and where to start.

 

There is a sticky at the top of this forum that covers basic bolt-ons for your truck; it says whether they work or not and the gains achieved. Also, use the search feature since this is a common question and there is some good info on the site.