Whoa simmer down. Ok have driven, ridden in or raced all of them I feel i should share. The 03 cobra is very reputable, but I rode in it vs a car I just programmed and the 2.73 02 fbody would walk him EVERY time. Forget the GT its not even on the same planet, or even with a power adder they need some help to keep up with a bolton LS1. Been there and done that, if you got a GT juice or a SC bring it. Now the aftermarket for that cobra is way better in the bang for the buck dept for the 1st $1,000. Yeah the cobars for a little bit can get 450+ RWHP but I really feel that they are dyno queens and do not put out the #'s at the track. A LS1 w/ 420 RWHP in a 6spd will take it every time been there and seen that, how about a A4 with 400RWHP forget it the A4 will destroy the cobra even worse at the track. From a roll the cobra should give it a run for its $$$.
The Z06 is the baddest car for the money on the planet. @ 3100#s and 350RWHP stk watch out. The aftermarket is abundant and the tries will smoke. We have an 03 car that runs 12.0 with a intake, catback, programming, and TIRES. It is quite possible to get these thing on the mid 11's with bolt ons and in the 10's with some real work. But I know the 03 cobra is a player when in the right hands. The high RPMs is where its at and the LS6 is well equipped. WILL SEE YOU ON SAT NIGHT!!! Now how is that for stirring up the pot.

Jeremy Formato
Building and programming the fastest EFI streetcars in the South!!