Okay, I've have some money coming in the near future. I'm planning on getting a custom exhaust for sure but I'm undecided on whether to get a RVM underdrive pulley or a Progress RSB (or any other brand you guys recommend). I've heard that the UP doesn't show much gains but its still a mod I intend to do eventually but which of these should I do first?
Senior Member
An underdrive pulley will actually improve horsepower up to about 6 hp. I have a group dealing on the Unorthodox UP if your are interested. We are looking for more people to sign up to get one. Please Visit my site at: www.maxdes.net and take a look around. Email us if you are interested in the group deal.