ATV Jet Kit for 2007-2012 Yamaha Big Bear 400 IRS Maverick X3 Turbo The Slip-On System picks up

The Slip-On System picks up 10-15% more horse power throughout the power curve

Spring color does not represent any OEM or aftermarket springs

Basic engine gasket kit

Must be used with a rear wind protection

Roller idler and drive bearings to maintain perfect gear meshing

ATV Jet Kit for 2007-2012 Yamaha Big Bear 400 IRS Maverick X3 Turbo The Slip-On System picks upTake your performance to new heights with a Jet Kit for your ATV. Increase power and improve performance throughout the entire RPM range while improving throttle response and smoothness. These Jet Kits take the guesswork out of tuning your ATV. Whether youre rolling with a stock ATV or youve made some modifications our Jet Kit will optimize your air fuel ratio to eliminate rough spots and help you take control of your ATVs power. You can go with a