Harness is priced about right. You're going to have to have the PCM (computer) set to work the the Tahoe. That's what a tune is. Now, Nelson performance will tune your vehicle for you and can build a harness at the same time. They've done tons of swaps into the OBS you're talking about doing. You're going to need all the front accessories that you don't have. You also have multiple options on intakes. You can do the Vette/F-Body intake, the truck intake, the LS2 intake, or the TBSS intake. It's all up to you and what you buy. We can help you get each of them to work.


EDIT: Can you let us know where you live? Don't forget to post in the new members part of the forum to introduce yourself and give us some background on you.