I feel your warranty concern...i had a talk with my dealer before purchasing my Tanabe exhaust and they said it would not affect my warranty since its from the cats back (i have a very mod friendly dealer). If i change my cats an opt for test pipes then that is another story (but that is a no brainer)...other than that they love my exhaust every time i take it in for service.

Ricer....no, my Tanabe has "laser etched" (as stated on the certificate lol) Hyper Medalion

 

lol I was wondering if anybody has any pics of the greddy installed sounds like a few people like the tanabe, but I wanna see the greddy before I make my choice