Fits - Yamaha YFZ 450 (04-09/12-13) EVO R ATV Slip On

  • Hard anodized oval shaped aluminum muffler 
  • TIG-welded reinforced muffler bracket
  • 304 stainless steel mid-pipe
  • Red powder coated stainless steel end tip
  • Lighter than the stock exhaust
  • Massive horsepower and torque gains
  • Sleek muffler design allows for maximum clearance
  • Removable screen-type USFS approved spark arrestor
  • Handmade in the USA
  • 1 Year Limited Manufacturer's Warranty

The Big Gun Evo Racing Series was designed to deliver maximum horsepower & torque gains throughout the RPM range. Made from .049 stainless steel tubing & an aluminum muffler canister, the Evo exhaust system is much lighter than stock units. Our sleek muffler design also allows for maximum clearance to avoid your exhaust from hitting the rear brake caliper.

Note: Must retain OEM Header to Mid-Pipe Gasket for proper installation

All Big Gun exhausts are for closed course use only and are not intended for use on the road. Big Gun exhausts are NOT LEGAL for sale or use on pollution controlled.