I expected no less from a Mustang enthusiast. To hook up you'd need slicks, a new rear end and if you don't know, people are already swapping in the 4 sp auto from the GTs to make their cobra go quicker and (as you said) be more consistent.

There's more ways to hit 9s other than the ALMIGHTY 03 Cobra.... you could buy an 02 LS1 SS, procharger supercharger, exhaust and K&N Airbox with lid. Done.

Viper, supercharger, slicks. Done.

Corvette Z06, Lingenfelter package, slicks. Done.

If speed is your game don't sit there and whine about costs like I KNOW you will.