have you guys seen this exhaust tip? they admit no performance gains but it does say it gives a good exhaust note. i dont believe the hype its just a tip how can a tip be anything more than cosmetic. at $142.00 they have lost there mind they cant be serious. check it out here Yamaha Exhaust : Bayside Performance, Canadian Source for 98-2010 Yamaha Honda Suzuki Kawasaki Ducati Triumph Sportbike Accessories And Apparel