recently I put a 3.73 posi rear out of a 99 ss in my 96 camaro 5sp manual . I also have kn air filter and magnaflow exhust off a 2000ss . will it be worth getting new pcm from texas speed or pcn for less ? how should I get it tuned? seems they have different settings for different levels of mods . by the way the rear bolt right in no mods e cable hooked right in. thanks to the board for all the usefull info posted , gerald

 

right on gerald im glad to hear that, it seems ur doing well.

 

You'll need some sort of tuning to accomodate the gear change, might as well have them adjust other parameters as well while they have it if it can improve driveability and provide a small power gain.