When I bought my GRiSO it came with a straight through pipe.
It ran like shit and sounded like shit as well, and was loud.
Stuck the original back on.
Its taken me 3 years to buy a DB killer for it, yes I'm a tight arse.
Well I finally did it and now have a sweat sounding pipe that weights nothing compared to the original.[You must be registered and logged in to see this image.][You must be registered and logged in to see this image.]