|
its a good looking hood. if you already have a cold air intake, I wouldn't bother with the air box. its too expensive for the minimal gain you may see. le2 heads can support a bit over 400 wheel horsepower. Cam choice will determine whether or not you get there and how high you have to rev. You need to factor in the type of driving the car will see and how you want it to drive and feel. Throwing a very big cam in a car that you drive every day in any weather that is a dog down low won't be fun at all. That being said, the m6 will not eat up as much power as an a4 with a decently sized stall so your number goal of 400 hp is quite achievable. I would definitely go with long tubes, you have a cat back and intake so thats good, you could consider an electric waterpump and depending on budget, porting your intake manifold and using a larger throttle body. You will need larger injectors and a strong valve train to support the extra rpm and valve springs/cam lift. Ask questions and we can continue to suggest items for the build.
|