Yamaha Snowmobile Performance

I'm looking for bolt on performance for a Phazer 1989 Yamaha 480cc engine and I can not find anything online ... Air intake, exhaust, etc.

For air intake, get the series Universal Air Filters K & N. Just to take a tape measure and measure the diameter of your intake manifold, visit K & N and the order of a filter of the same diameter.
I think the 1060 and 1100 series you should. Better check. With regard to the exhaust, do not buy on our site. It could actually reduce performance. While exhaust rooms are tricky. Better to stick to the stocks. If not, just go to a local tuner who is reputable and has done such jobs. It takes an expert. Other performance parts, you can add a large jet of the carb and try different gears. Ultimately, there is no list that can fit a particular vehicle, you must do so by trial and error.