- OR -

Store Tuning Fuel Injected

AFR+ Gen 4

AFR+ Gen 4

The Gen 4 Optimizer is the AFR+ Fuel Controller that combines an EFI controller with a wideband O2 sensor and AFR gauge to provide a user instant fuel trimming ability and feedback about their vehicle's state of tune.  The AFR gauge allows you to know exactly how well your tune-up is performing at all times.

 Kit Includes: AFR Guage, Wideband controller, and Bosch O2 Sensor 

select your ride

Price TBD

Add to Cart

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

Tell us your vehicle for 10% off!

Sign Me Up!

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