I'm not up to par on teh drive train and I know that its not just about how much HP you have but how you put it to the ground. I'm planning on running a 93z with a vortech supercharger at 15 psi, Moroso CAI, Lt super comp headers with dual cats, or x-pipe and borla exhaust. I would like to hear my options for the drivetrain that could handle the power and put it to the ground effectively. My goal is to show that imports dont own the street while muscle is still around

 

BTW its an A4 tranny

 

Obviously, a built up tranny and a sturdy rearend are the way to go if you want to get the power to the ground and not have to constantly worry about breaking something. Your stock tranny can be built up to handle quite a bit of power, look into this guy, he knows his way around these trannies: http://www.cahallperformancetransmissions.com/ As for the rearend, there are several aftermarket solutions out there such as the 9inch, a 12-bolt, and the Dana 60.