Originally Posted by chithead
You can do a HO cam swap, there are better options available though. Also might want to look into changing the intake manifold to a 2008 model, a tuner would be much better than a chip. We also have some great recommendations for 4.56 gearing for the 2wd trucks. I hear it will even offer better fuel economy while giving you more oomph when pushing the go pedal.
I know this is an old thread, and I have searched the forum for the answer to my questions for a couple days. Often when n00bs come on board, like me, and ask the same old questions, it gets old.
My question is this, since I am very interested in making this 2008 intake manifold change to my 03. I have one of these intakes located, but noticed the intakes gaskets/rubber rings are a different part number.
Has someone on here done this change? Is it a direct fit on the 03 heads?
Thanks in advance for your help.