Which one????????????
If you have an 01-02 you already have an LS6 intake, so I'd say your best bet would be to port and polish your stock TB. If you have a 98-00 swapping the intake isn't a big deal and you can go with an LS6 for reasonably cheap and P&P your TB. There are other options such as the FAST 90/92/102 and a bigger TB to go with it. That might be an option if you are serious about adding heads and cam and want to run in the 6's in the 1/8.


