BAD-LS1

I'm replacing the stock intake manofold and the stock throttle body. I'm going to a 90mm FAST intake and 90mm FAST throttle body. 2questions. 1. Wil I need to replace the stock MAF? 2. Will I need to retune?

black01_WS6

iTrader: (13)

You will most likely need a retune anyhow, I hope you are not stock as it won't pick up all that much power with out the other proper mods.

You maf should be fine, but if you are putting out some serious power then you may want to either get a bigger MAF- or delete it and get tuned in speed density.

FU_I_AM_UltraZ

iTrader: (20)

unless you have an amazing h/c package or upped your displacement, there is no need for a 90/90 combo. if you want a nice upgrade and save cash too, go with the LS6

99Z28LS1

iTrader: (4)

i would say say the $$$ and do an LS6 up-grade, and get the re-tune and you dont have to change the MAF, its ok