I've got the g75 and had the g 90 on my seagull yak. The only bad thing I can say about them< their mufflers suck!!! It took a large cutout on the bottom(mounted mine sideways) of the cowl, long cutout i guess and a deflector and was good to go, minus the 1/3 of the muffler hangin out the cowl. I just ended up gettin the bisson pitts muffler and it was just 2 little stacks out the bottom after words.