Hi I have a Ninja backbox for sale, it was fitted to a Subaru Impreza 2004 WRX, it will fit other models too but please check before buying. 

It's polished pipework in stainless steel 'mirror like' finish, the Ninja logo proudly shows off on the tailpipe. 

It has a hole in the top of tip for a spark plug doesn't affect the way it works / sounds. 

4 inch tip and 2.5 inch diameter pipe, these sound awesome and gives out the rumble noise of the boxer engine. 

Its in very good condition. 

£80 + postage (around £10) or collection from Leeds. Buyer to cover PayPal fees. 

Thanks, Kev.

Damn, wish I had the money spare. Why are you selling? Out of interest