MM K-member for 2005-2014 Mustangs. This new MM design achieved not only our primary design goal of improved handling performance for a lowered Mustang, but it also met all of our secondary goals.

Design Goals Achieved
-Optimized roll center height for a Mustang lowered to the limit of the American Iron rules.
-Stronger and stiffer than stock k-member, to allow less deflection under cornering and braking loads.
-Fits stock motor mounts, for least change in NVH
-Fits stock front control arms, with stock or aftermarket bushings
-Fits both electric and hydraulic steering racks
-Allows easy oil pan removal without requiring additional engine support
-Upgradable to SLA suspension

Required
-Bumpsteer kit.
-Some means to support the engine during installation.

Related Parts
Bumpsteer kit. A bumpsteer kit is required with the Mm5KM-7.
Bumpsteer gauge. This gauge makes proper installation of the bumpsteer kit easy.
Engine support brace. Makes installation easier and faster.
Lightweight radiator core support.
Core support brace/adjustable mount for swaybar.
Extreme Lowering Kit with spacer and bolt-through bumpsteer kit to allow use of upper control arm pivot holes.

Fits
-2005-2014 Mustang
-Stock motor mounts
-Urethane replacement motor mounts
-Stock front control arms, 2005-2014
-Stock front control arm bushings
-Aftermarket replacement control arm bushings, urethane and Delrin
-2005-2010 hydraulic steering rack
-2011-2014 electric steering rackLearn More

Kit to install easily-removable door bars in place of the standard door bars originally fitted to MM 6-point roll bars. MM's E-Z-Remove door bars can be detached and removed in moments.

Fits these previously installed MM 6-point roll bars:
Mm5RB-20
Mm5RB-20.5
Mm5RB-20.6

Benefits
The standard door bars of the MM 6-point roll bars can be difficult and time-consuming to remove and reinstall. When removed, bolt holes in the floor are exposed.

After upgrading to the E-Z-Remove door bars, both door bars can be easily removed in just a couple of minutes, and there are no holes left exposed in the floor.

Leave the E-Z-Remove door bars out for daily driving.

When heading to the strip, reinstall them in moments.

Meets the NHRA and NMRA rules for removable door bars.

This kit includes:
(2) E-Z-Remove door bars
(2) floor mounts unique to the E-Z-Remove door bars
All hardware required

Notes
E-Z-Remove door bars are available on new roll bars: Mm5RB-24, Mm5RB-24.5, Mm5RB-24.6
To add E-Z-Remove door bars to your 4-point roll bar use Mm5RBO-3.
Read the Mm5RBO-2 door bar installation instructions before purchasing.
Learn More

Kit to install easily-removable door bars on a previously-installed MM 4-point roll bar. MM's E-Z-Remove door bars can be detached and removed in moments.

Fits these previously installed MM 4-point roll bars:
Mm5RB-20.1
Mm5RB-20.2
Mm5RB-20.3

Benefits
Adds door bars to the MM 4-point roll bar already in your Mustang.
The standard door bars of the MM 6-point roll bars can be difficult and time-consuming to remove and reinstall. When removed, bolt holes in the floor are exposed.

After retrofitting to the E-Z-Remove door bars, both door bars can be easily removed in just a couple of minutes, and there are no holes left exposed in the floor.

Leave the E-Z-Remove door bars out for daily driving.
When heading to the track, reinstall them in moments.
Meets the NHRA and NMRA rules for removable door bars.

This kit includes:
(2) E-Z-Remove door bars
(2) floor mounts unique to the E-Z-Remove door bars
(2) floor-mount doubler plates
(2) mounting spuds for the main hoop
All hardware required

Notes
Welding is required. The two mounting spuds must be welded to the main hoop. No other welding is needed.
The Mm5RB-20.2 4-point roll bar will meet the NHRA/NMRA rules with the addition of the Mm5RBO-3 E-Z-Remove door bars.
E-Z-Remove door bars are available on new roll bars: Mm5RB-24, Mm5RB-24.5, Mm5RB-24.6
To upgrade your 6-point roll bar to E-Z-Remove door bars use Mm5RBO-2.
Read the Mm5RBO-3 door bar installation instructions before purchasing.
Learn More