I bought my son a sun l 90 1.5 years ago. I paid $377.58 for it including taxes and a helmet. I have a tri-z and want to take him to kermit, tx with me to do some dune riding. This past weekend I put some douglas rims with skat trak glider paddles on his quad. They were 8 inch rims which bumped up the ground clearance which he needed. I modified his front fenders so I can get two 8 inch douglas rims with a set of mohawked fronts. I also relocated the air filter to the front on the quad like it should have been. My question is where can I get an exhaust for his quad or any other power add ons?? It already has a really good balance of low end grunt with top end speed for an automatic, but is there anything more I can do to maybe up the antee a little bit??? I am putting spacers on the front and back from raceway to stabilize it. Thanks a lot. Daron

 

if you're looking for more horsepower, i think the best thing to do is replace the engine with a 110 with 12hp, almost double than the stock 90, not all 110 are 12 hp most are 7. you can buy the 12 hp 110 off of e-bay for around $300 complete, and should bolt right in.