rxrom

iTrader: (2)

I see that diablo is for 99 to 02 cars only. Whats so diffrent about 98. Does any one else make a plug-in tunner for 98 trans am

thanks
Roman

highgear

I was told by EFI that GM changed the Pins on the PCM starting in 1999. That kind of left the 97 and 98' as being oodballs. Seems that not many of the aftermarket companies wanted to change or make stuff for just the 97's and 98's. Check with Comp and some of the bigger companies to see if they can help.

bp m1009

iTrader: (2)

i was wondering the same thing...

slow

iTrader: (7)

To my knowledge the hypertech is the only preprogrammed tuner for the 98's, I had one and it was garbage.

SCT makes a custom tuned X2 that will support the 98 cars, but only if the car has the latest GM reflash and it is custom tune only.

Ryan