Did you know that Ford Tensioned the secondary chain on the Ford Coyote Engine (left bank) incorrectly?? The chain from the factory is actually tensioned on the pull or "tight" side on the passenger side! Much like the primary chains and the right bank chain on the Coyote engine, they must always be tightened on the "slack" side or loose side. This has continued from 2011 all the way to 2025. And while it does not pose significant issues on factory vehicles, performance applications can see many improvements when using the MMR Tensioner Bracket (which allows the tensioner to be flipped and tension the chain on the correct (loose) side. Increased secondary chain life, stable intake cam timing, Higher RPM ability and consistent HP are all benefits of the MMR design.
If you are building a serious Coyote engine – YOU NEED THIS!!
MMR offers our Patent Pending tensioner bracket for Gen1, Gen2, Gen3 and Gen4 engines and keeps them in stock.
Proudly Made in USA in our Camarillo, CA Facility.
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Here is a MMR Built Twin Turbo Cobra Jet Replica that we did roughly 10 years ago. Fun Project! … See MoreSee Less

MMR is very pleased to be working with Fueltech on yet another Coyote Project. We were fortunate enough to get our hands on one of the first FT700 ECU’s and this thing is awesome! More to come on this project in the coming weeks. #FuelTechUSA … See MoreSee Less

Some MMR GenX Ford Coyote bling to start your weekend! Hard to believe sometimes that this crazy MMR creation runs 5.60’s with Factory (MMR CNC Ported) Cylinder heads!! … See MoreSee Less
