Working on installing an older Rotax 299cc into an EZGO. Everything has gone well thus far, but I think I'm having exhaust related problems. I installed the pipe that came w/ the motor (but it was in very bad shape) and she smoked a ton and had 0 power. Then, I tried a straight pipe and it ran better, but was un-godly loud and would not rev as much as it should have. Now I'm at a loss and any suggestions would be great!