View Full Version : yamaha J38 exhaust

06-10-2008, 05:59 AM
I have built a 1991 G9 all terrain golf cart. It has a j38 285cc 4 stroke. Its been bored , ported and polished and revalved. It runs great and is probably closer to 300cc now. I fabricated exhaust for it but its to loud and not tunable. It has a 1" od pipe. What would you suggest. Thanks for your input.

06-10-2008, 07:49 AM
The 3M DirtBike Series is the only muffler we have with a 1.0" ID, P/N 317-1000. Our other Universal models would require a reducer to fit on your pipe due to larger inlet diameters.