Am I thinking too much for my '08 City 1.3?

I'm planning to buy the Mugen Sports Silencer for it and stumbled on their website with some text saying "1.5W / 1.5A (FF)".


  • Does this mean that the requirements for the said exhaust are for 1.5 engines only?
  • How will it perform if I insisted to get it installed on my 1.3? (No power gains?)

I'm really hoping that the Mugen will fit and perform as good for my 1.3 because I'm building it to be an all-Mugen car.
Thanks for anyone who will be responding, much appreciated.