I'll have to agree with many people on this subject, A TC is the best mod you can buy for an A4. It is a night and day difference between an aftermarket converter and your stock piece. Whoever said something about losing gas mileage may be right, but you have to pay to play. You cant expect to have a fast car and not lose some streetability.

 

i just put in a 3400 and love it. I didn't buy a camaro to get good gas mileage, if i was i would have bought a honda.

 

I agree