DualCamEK

im sure this subject has been brought up many times. but im looking into turboing my stock ls motor a 99 with 71k miles...i just wanna know what kinda problems ill run into while im turbo'd...what upgrades ill need to my fuel set up. or internals...im not looking to boost higher than 4-8psi around town. if anyone here has boosted there ls's could you tell me a few things i would want to know?? thank you very much, o and what turbos are good to run!