Quote Originally Posted by Overkill View Post
Overkill PCM :: Overkill Motorsports ::
Diablo/CMR tunes can't modify the transmission parameters to my knowledge, which is where a big change in how the vehicle drives is made with one of my computer tunes, plus remapping the transmission line pressures and torque management which can make a big difference in the life expectancy of the transmission (stock settings are truely awful).
THIS. Torque management really kills WOT stabs, etc...I loved having higher line pressure and quicker/harder shifts...made the car feel much more "alive" if you will.


Quote Originally Posted by Overkill View Post
For intake, the stock airbox actually isn't restrictive aside from the inlet. 20 minutes with a sawzall or other cutting device and a high flow drop-in panel filter would routinely save LS4ers $200 over an aftermarket CAI.
THIS as well...I'm glad Will brought this up...that is what the 3800 guys used to do in the old days too...gut the box, run a straight piece of tubing from the TB to the airbox...and toss a high flow panel filter in there. Proven to work.