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Mustang 2 Step Rev Limiter | What Does It Do?

Created by Jay Walling / 4 min read
Date Created: 5/8/2019
Last Updated: 9/1/2022

In this article, LMR discusses everything you need to know about the 2 step rev limiter and how you can use it on your mustang to increase performance!

Viewing this install and using the information shared is subject to the terms set forth here - View the LMR Install Instructions Disclaimer.

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What Is A 2 Step & What Does It Do? - What Is A 2 Step & What Does It Do?

In its most basic definition, a 2 step is a rev limiting device that you install on your car that has 2 stages, one with a lower RPM and the other at a higher RPM. The lower RPM limiter is usually used for launch control while the higher RPM limiter will be located at redline or slightly over redline. This is to avoid excessive revving and engine damage.

The 2 step also cuts the ignition rather than cutting the fuel like the factory rev limiters. This is usually cut at a specific rpm lower than the main rev limiter for the purpose of building boost for launching better from a standstill. Once the ignition is cut it allows the unburnt fuel to enter and burn in the exhaust manifold and turbine housing. This spools the turbo and makes boost even though the engine isn’t under load. By limiting the revs, whether it being on the 2nd stage for engine protection or 1st stage for better launches it all leads to a better driving experience.

Whatever Mustang needs you may have look no further than Late Model Restoration to supply you with the necessary parts to give you a quality 2 step rev limiter.

Source: MSD Performance

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About the Author

Jay has written content for Late Model Restoration for over 10 years, producing over 120 articles. Jay has an extensive 25-plus-year background in automotive and is a certified Ford Technician. Read more...
What Is A 2 Step & What Does It Do? - What Is A 2 Step & What Does It Do?