hey yall i have a 01 gmc sierra 1500 extended cab stepside w/ 6'' lift and 35'' tires, i want to get every little bit of power i can, i have a cold air intake, throttle body spacer, 4.56 gears, and diablo sport programmer, im wanting to upgrade my stock throttle body on my 5.3 any opinions on what to get? thanks in advance

 

Hey bud, there are some aftermarket options to include having your tb ported and polished... Browse the sponsors, you should see some options through them.... But on a stock truck theres not alot of gains with the throttle body... I would recommend a custom tune and exhaust if you dont already have it....

 

Dido, on your setup its kinda useless. I would suggest a custom tune and some long tube headers. Long tubes male great TQ gains which would be great for your 35.s

My old nbs cc has a 8" cognito 35's 4.56 intake long tubes exhuast and a tune. Worked really well, it was not fast by any means, but brought the truck back to stock like performance, if not marginally better, but on 35's

 

thanks yall. ive got brand new cats with straight pipes, i deff need a custom tune bad the diablo helped a good bit but i know a custom tune would be better. soon to come im ordering bbk short tube headers (because ive just heard its a bitch to put long tubes on the 4x4's) and a 220/220 texas speed cam w/ new springs and rods. is there any other upgrades (affordable within the $500 range) yall know of thatll get some more power flowing

 

Other than internal modifications... You got free flowing intake... Free flowing exhaust... And any power robbing accessories... Pulleys... And electric fans!!

 

E-fans will free up alot of drag on your engine.... Couple hp, throttle response.. And a mpg or two

 

lose the cold air intake,throttle body spacer and hand held tuner
make yourself a 4" intake tube to stock box, long tubes, 3200 stall and custom tune for now.
save up for a built trans and do a cam when funds allow

 

a nnbs/tbss intake manifold and 90mm throttle body is a great upgrade.
https://www.performancetrucks.net/fo...9-02-a-459296/

 

defanitly worth the money IMO

 

and its within the price range. you can find tbss intakes for about 200 complete and the tb will be about 150.