Re: 2003 yamaha wolverine upgrades
Unless the Wolverine has radically changed their air filter system on the 2003 model, it is the same pitiful system that Yamaha has stuck with since 1986 on Warriors & Banshees; that is, it relies on the airbox lid to secure the filter to the intake...very iffy! For insurance against future engine damage due to dust, dirt, or other small objects that get past the unsecured filter, I'd suggest you replace that thing with the Pro Design filter kit as the first thing you do.In addition to a foolproof secure system, you'll have a bigger & better filter that flow more air, thus allowing your pipe to do its job. By the way, I run the T4 on my Raptor with the performance tip and it's quite LOUD! Not a problem in the wide open spaces of AZ, but if decibles is a problem for you, Pro Circuit has two other end caps which are quieter and provide more low end . Don't forget to do a test ride/plug read to know what your engine wants in fatter jetting.