best exhaust
Greddy, Apexi and Muggen seem to be the most respected as well as the best constructed pieces around. The Greddy systems seem to be the lowest quality of the three, and can produce gains of 3-11 Hp with the addition of the header, which I know less about as far as manufacturers. I would recommend the Apexi system for your HP to budget ratio. Although it's much louder than the greddy, the sound is elegant all the way through the rev range. The canister is a bit large, particularly for the N1. You should also be able to get the Apexi for only slightly more than the greddy system. Muggen is the best piece, but if you ever intend to go forced induction, alot of their products are not straight through (wrap around) and aren't optimal for maximum flow at high rpms. Muggen is also much more expensive. I hope I have helped in the slightest.






