Quote Originally Posted by aaronng View Post
Ewww.... 5zigen....... and Mugen is just for show.
What are the gains on dyno for those 5 jap brands?
I have to disagree, since I saw once one Dc5r with Mugen setup I/H/E plus mugen ecu produce 141kw atw on dyno dynamics and one Dc5r had similar setups without ecu still got 132 kw atw on the same dyno and the same day.
So totally I think it is not just for looks.

I mean Jtune exhaust itself would be still restrictive if not it won't be quiet. If you want to get maximum results get the N1 or competition use since it use less restrictive design or minimum like J's racing, spoon etc that focus on straight through design. Well anyway NA cars won't be like turbo cars when choosing exhaust would be so critical, since one good brand to another would be only very little to minimum comparison in terms of kw produced, the difference would only in quality of the matarials and looks.