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So heads, cam, and headers will get me 400rwhp? So I guess if I do those 3 and do full exhaust that will put me over 400. What about gearing in the rear?
Let's step back:
LPE, 21st Century MC (972 417 7177) kit consisting of: H/C, Kooks headers, "X" pipe and exhaust will get you close to 480 engine (on the A4 - over 500 on MN6
Rear wheel will be approximately 420 (depends on your gearing).
Costs + $5999!!!!!!!
The S/O has this on her '04. While I have the LPE 427, overall her car is much more realistic for daily driving.
Keep in mind that there is a threshold where the amount of HP gets out of hand