buy the Jap stuff - online at greenline or neugen.
Not only is it a reserched and developed system - it just looks more "quality" and better finished.
GO the Apexi N1 - AWESOME exhaust - remember:
1. DONT COMPROMISE
2. DO IT ONCE - DO IT PROPERLY (if it takes alittle longer to save, do it, it will be worth the wait).
Dan