blk05goat

Anyone seen any performance specs on a 05 GTO with there Magna Supercharger packages, or is there a better way to go for that kind of money?

blownCTSV

Here you go. My 05 has the Lingenfelter Magnacharger package. It made 470rwhp and 440rwtq.
I think you can find a cheaper installer but not one with a better reptation. I am the`second owner of this GTO and the original owner took the hit for these mods.