Originally Posted by Megan370z

the problem with the OEM exhaust is mostly the Y-Pipe which restrict a LOT since the exit of the y-pipe isnt 3'' if I remember correctly ( I will have to mesure mine after work and provide with a true mesurement)

that Amuse single in 3'' will provide more flow than the OEM Y-pipe which also give more power.. but the VHR can flow a lot more than a 3'' single.


remember that 15hp you are talking about with the Amuse R1000
its basicaly the same with the Fast Intension cat-back