I have a 2003 audi a4 FWD. I am going to swap turbos with an audi tt which brings the ko4. I know im gonna have to switch injectors as well, but does any one know if i would have to switch the fuel pumps? Also, about my exhaust. I spend money i dont have on a 3" downpipe with 2.5" pipes straight back. The area where the stock resonator was I replaced it with a 40 series flowmaster and thats all i have. I sounds like an SRT 4. i HATE it. Im gonna put a resonator on it and hopefully it will sound more like a G35. But im gonna lose hpr, ohwell. Someone help me

 

This would be better off in the A4 section.

I'm not entirely sure a TT K04 will bolt into an A4. There are different verions of the K04. You do not need a new fuel pump. You'll need a new chip.

 

im almost certain you need a different Exhaust manifold the ko4's they use on the tt's have much larger ports and the housing is a bit bigger as well I beleave...

 

What kind of chip would u refer. Also, what I be able to drive the car until I save up money to buy the chip. Or is that really bad to do?

 

What kind of chip would u refer. Also, would I be able to drive the car until I save up money to buy the chip. Or is that really bad to do?