Yamaha YFZ450/450R (2004-Present)
Whats good everyone, new to the forum, picked up a yfz450r a few weeks ago and broke it in this 4th of july weekend, had a blast. I was just wondering, if the EFI Controller ex:Power Commander* etc is really neccessary...?Lookin to put in a K/N filter w/outerwear, lid off.. i already have the...