Choosing the right Max Travel Kit:

• 21-30 psi – For bone stock trucks with no additional fueling upgrades, just AFC Live
• 30-35 psi – For trucks with a stock turbo but with additional fueling upgrades
• 35-45 psi – For trucks with a larger aftermarket turbocharger and additional fueling upgrades
• 45-60 psi – For trucks with multiple turbochargers and additional fueling upgrades producing high boost levels

The AFC Max Travel Kit is designed to work in conjunction with AFC Live. The AFC Max Travel Kit is categorized into specific boost ranges to allow maximum tunability for your specific turbo system. The AFC Max Travel Kit is not designed to work without AFC Live, as it will be far too light for a normal truck. AFC Live allows a very light spring to act as a very heavy one and everything in between. These are designed to help with very low-boost smoke control where the stock spring falls short.

When you loosen the star wheel to get maximum response, the stock spring is basically in "free float" for the first 5 psi. A stock spring can yield as much as 50% rack travel at 5 psi with the star wheel in the fully loosened position. This makes for a very smoky low end. With the AFC Max Travel Kit, we can effectively control low-boost situations with the star wheel in the fully loosened position. And then with AFC Live, you can make the spring rate act very heavy or very light, all while in the cab driving down the road.

Compatible with P-pumped vehicles and with AFC Live installed:

*May not work for all builds due to other engine/vehicle modifications.

This product cannot ship to California

Frequently Asked Questions

What does the AFC Live Max Travel Kit do?

It increases fuel delivery on P7100-equipped 12-valve Cummins engines by maximizing AFC travel, resulting in more smoke-free power under boost. It works in conjunction with the AFC Live In-Cab Tuner to give you full control of fuel delivery from inside the cab.

What's the difference between the AFC Live Max Travel Kit and the AFC Live In-Cab Tuner?

The Max Travel Kit is a fixed mechanical spring upgrade that maximizes fuel delivery at your boost level. The In-Cab Tuner adds adjustable, real-time control of that fuel delivery from inside the cab. They are designed to work together for best results.

Will the AFC Live Max Travel Kit work with my stock turbo?

Yes — select the 21–30 psi or 30–35 psi option for stock turbo applications. Results will be limited by your turbo's airflow capacity, so pairing with an upgraded turbo unlocks the full potential.

Is this kit legal for street use?

Intended for off-road and competition use. This product cannot ship to California. Check local emissions regulations before installing on a street-driven vehicle.