The Walker Evans shocks allowed the ol’ Rhino to get loose enough to jump with confidence and gave it a plush ride. At Side By Side Stuff, we offer a variety of Exhaust Systems, Intake accessories and other engine performance parts for your Yamaha Rhino. Shop our selection of … So all these upgrades are pretty much bolt-on, and work well together to provide more top speed and more power. Yamaha Rhino Performance Upgrades. — Giving a modern touch to a bulletproof UTV, By the staff of Dirt Wheels — Before the upgrades, we would never jump this Rhino with its blown OE shocks. With increased spark energy you will experience easier starting and better throttle response. Removes the speed limiter and … For this stage of our Rhino buildup, I wanted to boost performance without sacrificing reliability. 50 Caliber Racing CDI module for 660 Yamaha Rhino and GrizzlyOur performance CDI module will give you the most bang for your buck.