Vance & Hines announced the FP4, the next generation of its industry-leading engine control module (ECM) flash tuning products. The FP4 features an all-new circuit board, case, firmware and mobile app, all of which were designed and manufactured in Santa Fe Springs, California. The FP4 brings greater control and optimum performance tuning to Harley-Davidson Touring and Softail models because it’s the only app-driven tuner in the market.

“We know riders want the best setup for their Harley-Davidson, just like we do for our race bikes,” said Vance & Hines President Mike Kennedy. “Think about it, the bike’s stock ECM is set for a stock exhaust and factory air intake. When you make changes, like adding a different exhaust or air intake, you need the right tune to get the full performance potential out of your engine.”

The heart of the Vance & Hines FP4 is the ability to dial-in the motorcycle’s ECM tune to match the performance upgrades that a rider adds to their motorcycle, such as an aftermarket exhaust system and a high flow air intake. Owners of the FP4 may choose from a vast library of Vance & Hines maps created in the company’s dyno-tuning lab in California. Vance & Hines maps are model-specific and are created using actual parts on real motorcycles, not projections made from previous tests. Owners can further develop those maps with a number of customization options found in the FP4 app.

The Vance & Hines FP4 unit has a slimmer and smaller case and a longer wiring harness than its predecessor, FuelPak FP3, allowing more options for locating the hardware on the motorcycle. It features simplified LEDs on the unit, which display the communication between the unit and the bike. The FP4 also uses the new red OBD II connector, which is now standard on 2021 and 2022 Harley-Davidson Touring and Softail models.

The Vance & Hines FP4’s smartphone app is one of the significantly upgraded features of the device. It has a new look, is easier to use and is faster than ever before. The user experience is vastly improved with a redesigned navigation bar, giving easy access to the FP4’s core tuning functions. The Live Data capability of the app includes a new gauge layout and delivers more data to the rider than any other ECM tuner on the market.

Support for users of the Vance & Hines FP4 takes customer service to a whole new level. Riders can use the app to directly upload their map to the FP4 customer service website to receive hands-on technical support, while speaking to a representative on the phone, email or chat.  This support for owners is unheard of in the powersports industry.

“With FP4, it’s as simple as connect, tune, ride. That’s the mantra that guided us in developing the next generation of our industry-leading ECM tuner,” Kennedy continued. “The FP4 is the most intuitive, easy to understand, rider friendly tuner in the market, and we’re really proud of that.”

The Vance & Hines FP4 is compatible with 2021 and 2022 model year Harley-Davidson Touring and Softail motorcycles. Suggested Retail is $459.99.


  1. This system is the best. My shop turned me on to FP4 since I changed my head pipe and eliminated the catalytic converter (race purposes only of course). Super easy to set up and made a HUGE difference in the way the bike runs. Had to call customer support since I am not running V&H exhaust, they didn’t care, helped me out and got me going in no time. Well done Vance & Hines, I will be singing your praises on the road.

  2. On my 2018 Softail Deluxe (107 M8) I’m using Vance and Hines Pipes, High Flow intake and FP tuner, other than custom paint and other visual mods, that’s it. The bike was transformed to say the least. The power throughout the power curvve pulls hard; especially noticable on hills and hard take off. There is no loss to smoothness at idle or cruise, just noticable power increase. The map is included and downloads from your phone. Their technical help is exceptional, I would buy again without hesatation.

  3. I’ve appreciated your products on several of my different bikes over the years. Also giving me a chance to keep elevating the performance with a mapped guide FP3 & FP4! Mahalo & Aloha keep up the great works to help a novice enjoy working on his Toys!

Leave a comment

Your email address will not be published. Required fields are marked *