Thread: its a 4.8

i just want to do bolt ons...just things here and there that will increase the performance but i am definately getting a programmer

James (with the sweet ass nova) wrote: Steve wrote: Throttle body spacer, cold air induction, and a free flow exhaust. My buddy did these to his and pulls an amazing 20mpg combined city and hwy if he keeps his foot out of it. he did get some impressive power boost to boot. I have a stock 04 with a 4.8 and it gets 21-22 mpg, but still getting 20 with mods done is pretty good. I did put a corvette servo in the transmission, so now it has a...

Steve wrote: James (with the sweet ass nova) wrote: Steve wrote: Throttle body spacer, cold air induction, and a free flow exhaust. My buddy did these to his and pulls an amazing 20mpg combined city and hwy if he keeps his foot out of it. he did get some impressive power boost to boot. I have a stock 04 with a 4.8 and it gets 21-22 mpg, but still getting 20 with mods done is pretty good. I did put a corvette servo in the transmission, so now...

$FREDDY$ wrote: need tips on how to make a 4.8 faster and give it more horsepower... programmer chip. it depends on how far you wanna go. do you wanna just do bolt ons, or do you wanna go into the engine and rebuild it? you also might be able to do a cam swap, but i beleive you’d need the proper engine software/ecu to support the cam specs. otherwise the engine’s computer wont be able to put in the proper air/fuel ratios,...

Anything going past basic Intake & Exhaust is definately gonna require a re-flash. If you touch the heads or cam its a must or it’ll run like shit. Depending on your budget & how far u wanna go i’m sure u can find a top end kit for it.