on the 03 sierra's with the 4.8l which intake manifolds can u put on to get a little bit better flow? ls6 intake maybe? also i plan to put it on a ls1 when its finished being built. and im looking into upping the throttlebody too whats recommended for that?

 

What I would do is research around a little bit, but off the top of my head all i can think of is a p&p tb if ur stayin n/a. and i believe the ls6 intake manifold would be a good choice. I just got back into modding again after almost a year so theres a lot i dont remeber so i could be wrong.

 

do you plan on going FI? whats your plans?

 

tbss intake

 

+1 and upgrade to the ls2 tb

 

i will probably not go forced induction, if anything it might get a wet shot a nitrous if that and if so it will only taste it once in a blue moon, so im looking for something for a naturally aspirated motor, but i would like to get some gains from the 4.8 and still be able to put it on the ls1 and get gains, so far i should get the ls2 throttle body & the tbss intake, will there be aproblem with my truck being dbw with any of this?