Ive got my money on a hypertech lol jk...My question is, why cam or do anything else performance wise if youre worried about gas mileage?

 

Oh im not worried about the gas milage. Running 4.10's on 33's with a stick. Just figured if their was a way to improve that I didn't know about I might as well ask. The advice is much appreciated.

 

save your money on rockers, it wouldnt be worth it. and do not use widebands in place of the stock narrowbands. they will not work with the factory computer. if you want a wideband, have an extra bung welded in.

 

Awsome! Thanks Atomic! Got the info i wanted.

 

X 1,000,000,000

Do NOT delete the front o2's..They play a very important role in keeping your truck running good..And there is no need to replace them unless they are bad..Using your logic..They already kind of function as a wideband style sensor (Adjusting the A/F ratio)..Gm knew what they were doing..

Try to find a set of the SLP oem style 1.85 rockers on here or fleebay..

 

The front o2s are not widebands, they are narrowband. I think the cobaltss is the only factory gm car that came with a wideband.