I have a 99' txl 90 and want to up the power so it can deal with the sand dunes better. I am on a budget and not trying to make a race quad out of it. I have tried to contact Tomco Enterprises which have a 99cc cylinder kit fo 110.00. I have had no luck reaching them. Has anybody ever dealt with them? Does anybody know of any other cylinder kits close to the same price range?