- OR -

Performance Full Exhaust System

  • Performance Full Exhaust System
  • Performance Full Exhaust System
  • Performance Full Exhaust System
  • Performance Full Exhaust System
  • Titan Full Exhaust System
  • Titan Full Exhaust System
  • Titan Full Exhaust System
  • Titan Full Exhaust System
  • Performance Full System Muffler
  • Performance Full System Muffler
  • Titan XL Muffler
  • Full System Head Pipe

Honda® Rancher 420: IRS

The Honda Rancher 420: IRS is available as a Full System in the PerformanceTitan, and Swamp Series. The Performance Series picked up nearly 4 horsepower with nearly 3lb of torque. The Titan-QS, and Swamp Series picked up 2 horsepower with 2lb of torque, and the Titan-XL, and Swamp-XL Series picked up 3 horsepower with 3lb of torque. At idle, the Performance, Titan-XL, and Swamp-XL are 2-4 dB louder than the stock muffler, while the Titan-QS and Swamp are only 1-2dB. The HMF Quiet Core can drop the volume roughly 1-2 dB more.

Exhaust Fits
(15-19) Foreman Rubicon 500
(15-19) Foreman Rancher 420: IRS

Does Not Fit
(14-19) Foreman/Rancher See Foreman
(15-19) Foreman Rancher 420: SRA See Rancher 420: SRA

Fuel tuning is not typically required learn more

Typically, fuel tuning is not required when installing an HMF Exhaust on this machine. However, other modifications to the machine may require the need for fuel tuning to ensure the machine runs properly, and there is no damage to the exhaust system. See the tuning settings below for possible tuning solutions or Contact Us for more information.

Exhaust Systems

Honda® Rancher 420: IRS ATV Accessories

Tuning

Fuel Tuning is absolutely required when installing an HMF Exhaust on this machine. Failure to tune the engine can cause excessive damage to the exhaust system and engine, while voiding the warranty on your exhaust and possibly on your machine. (check with local dealer). See the tuning settings below for the proper fuel tuning solution on your machine.

Mode 1 Mode 2 Mode 3 Mode 4 Mode 5 Mode 6
            
3.5 3.0 0.0 4.5 4.0 2.0

Low Speed Fuel

Going down on the number scale will reduce low speed fuel. Going up on the number scale will increase low speed fuel.

Mid Range Fuel

Going down on the number scale will reduce mid range fuel. Going up on the number scale will increase mid range fuel.

High End Fuel

Going down on the number scale will reduce high end fuel. Going up on the number scale will increase high end fuel.

Green Lower Switch Point

Going down on the number scale will turn green mode on earlier. Going up on the number scale will turn green mode on later. These modes typically will not need adjusted from their base setting.

Yellow Lower Switch Point

Going down on the number scale will turn yellow mode on earlier. Going up on the number scale will turn yellow mode on later. These modes typically will not need adjusted from their base setting.

Red Lower Switch Point

Going down on the number scale will turn red mode on earlier. Going up on the number scale will turn red mode on later. These modes typically will not need adjusted from their base setting.

Optimizer Help

Click here to watch our HMF Optimizer tuning and installation video.

Hook me up! Get 10% off your next exhaust or equipment order.

Sign up for the HMF Community and receive the following perks:

  • 10% off your next exhaust or equipment purchase
  • Details about upcoming HMF products
  • Exclusive product giveaways
Sign Me Up!

No, thanks. I'll pay full price for my powersports needs.