Hey all have just bought a 2010 silverado 5.3l 6 speed had a 07 vmax 6.0 the new 5.3l is way sad have a couple upgrades stock trim 219rwhp volant cai cat-back flowmaster and a tune was at 289rwhp want to be at about 360-380 rwhp on a buget and don't want to put a converter in any one have some thoughts its also a crew cab 4wd

 

Wow 70 hp from a cai and tune, thats pretty impressive. Who did your tune? 375 is a good amount of power on a 5.3 without spray or boost, IMO. Your next mod needs to be a set of LT headers and y-pipe to bolt up to the cat back. After that, a really large cam might get you close but a stall will definitely be needed, probably a set of heads too. I'd shoot for 350whp, or spray it.

 

How much is your budget?

 

Tvs should get you there and you won't NEED a converter

 

put it on the funny stuff

 

Jesse Bubb of WAIT FOR ME PERFORMANCE did my tune spose to be really good i guess he helped do software developement for EFI LIVE Lingenfelter performance recommended him. Good work but his name says it all WAIT FOR ME would recomend but if you are in a hurry??? What kind of LT'S, what kinda cam its a daily driver . Thanks