New! MM Starter Box for S550 Mustangs. Includes Koni dampers, MM Caster Camber Plates, choice of Eibach or H&R springs, and Eibach swaybars.
New! Koni struts and shocks are now available for S550 Mustangs. Koni's renowned Sport series single-adjustable dampers will greatly improve the handling your 2015+ Mustang.
New! MM Engine Support Beam for 2005-2014 Mustangs holds your engine up while swapping k-members. Ideal for installing the Mm5KM-7 k-member, or any k-member. Install headers much more easily by removing your k-member.
New! Now in stock are springs for the 2015 Mustang from Eibach and H&R.
New! MM now offers an adjustable front swaybar for SN95 Mustangs. Currently in stock and ready to ship.
New! Second-generation MM shocks are now available, with 4 different valvings in stock. These shocks are loaded with new features to improve performance. Along with the new shocks are 2 new coil-over kits, and a new Racing Upper Shock Mount.
New! Read the new MM&FF install article about our new 2015 Mustang Caster Camber plates. More product information about the Mm6CC-10 kit can be found here.
Allows swapping one of the listed engines into a 1979-1995 Mustang chassis. This hybrid k-member bolts into a 1979-1995 Mustang chassis, but has the engine mounting pads and steering rack location to allow fitment of a 4.6L/5.4L modular, 3.8L V6, 5.0L Coyote, or LSX engine.
Get more front grip and dramatically improve the handling of your Mustang with an MM tubular K-member. At 39 lb, the MM K-member is 22% lighter than the OEM K-member, and yet it's the strongest, stiffest, and most durable K-member available. Fits these engines: 4.6L modular, 2V and 4V; 5.4L modular, 3.8L V6, 5.0 Coyote, LSX.
Better by design MM's Engineering Team optimized the suspension geometry to increase cornering grip and produce a better-handling Mustang. A design goal was to maximize stiffness, as that keeps the suspension geometry stable when cornering. The added stiffness makes the handling more precise and increases stability under braking.
Like the OEM K-member, MM K-members are designed and built to last for the life of your Mustang. While most aftermarket K-members focus on shedding weight, our design priorities led us to create advanced cross-bracing and triangulation of tube intersections to ensure the strength and durability needed for this mission-critical part. We use thicker-gauge metal and larger tube sizes than other companies to ensure the MM K-member has the strength to handle drag race launches and wheel stands, road race use, and of course the rigors of daily street driving.
MM K-members in the news See the Articles tab.
Required for installation
Fits1979-1995 Mustang with one of these engines:
Tables below show the front tire location when various MM FCAs are installed with any MM K-members.
Does NOT fit:
Fore and Aft Wheel Location The fore-aft location of your Mustang's front tires may change after installation of an MM K-member and Front Control Arms. How much it changes depends on the specific combination of parts you install. Scroll down to see images showing the results of several combinations of parts installed on SN95 Mustangs.
Required Modifications 1979-1993 Mustang Any combination of K-member and front control arms that moves the front tire location forward will often require some modifications. How much modification depends on the tire size, wheel offset, and how far forward the tire goes. In general, likely modifications include trimming the plastic fender extensions, remounting the plastic inner fender liner, and adding a spreader bar to the fender under the extension.
1994-1995 Mustang All combinations of MM K-members and MM Front Control Arms move the front tire location forward. Some may require slight modifications; how much depends on the tire size, wheel offset, and how far forward the tire goes. In general, 0.75" rarely requires any modifications unless an uncommonly large tire/wheel package is installed. 1.5" of movement may require modifications to the plastic inner fender liner, and trimming the end of the bumper fascia inside the wheel well.
For more information about these modifications, email the MM Tech Department from the Contact Us page. Be sure to include the part numbers of the K-member and front control arms you will use, as well as the year, model, and sub-model of your car.
The images above show the results of several combinations installed on a 1994-2004 Mustang.
Left image: No change in tire location, using either:
Middle image: Tire moved forward 0.75", using either:
Right image: Tire moved forward 1.5", using:
We're working on FAQs for this product. If you have a question, please use our Contact Us page to email your question. We'll answer your question by return email, and also consider it for possible addition to this FAQ section.
You can read Maximum Motorsports' highly detailed MMKM-2.1 K-Member installation instructions before purchase.
Read the Muscle Mustangs & Fast Fords magazine article about their installation of an MM K-member into an SN95 Mustang.
Read the Car Craft magazine article about their installation of an MM K-member into their Fox Mustang project car.
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