OK man, youre dreamin.

A 2.5RS is slow. A GSR will beat it in ANY comprable form. Stock vs Stock. Turbo vs Turbo. I/H/E vs I/H/E. A stock GSR is a quick little car from the factory, the 2.5 is a slug. How do I know? I've had decent time behind the wheel of both cars with the exact modifications.

Once you hit 2nd gear, you WILL walk a 2.5 without a problem, provided both people know how to drive a stick (not even good, as long as you know how to shift) and the cars are in good shape. Thats a fact.