Fits Bilstein and Maximum Motorsports valved shocks:      BE5-6418-H4 but requires added groove (GBE5-6418-H4)     MB-6418-S1 already grooved 

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Fits Bilstein and MM valved shocks:     
BE5-6418-H4 with added groove (GBE5-6418-H4)    
MB-6418-S1 already grooved

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Fits Koni solid axle shocks:     
8041-1186S Single Adjustable    
8042-1134S Double Adjustable

Rear Coil-Over conversion kit for Koni shocks (solid axle). This kit comes with Hypercoil 2.25" diameter linear rate coil-over springs in your choice of spring rate. Consult your MM sales department for help choosing spring rates for your particular car and performance driving habits. This kit can be purchased without springs as a MMCO-5.

Fits Koni solid axle shocks:

8041-1186S Single Adjustable
8042-1134S Double Adjustable

Required: If your Mustang does NOT have a MM Panhard Bar, installing this rear coil-over kit REQUIRES an additional MMSM-2 Lower Shock Mount. The MMSM-2 is discounted to $25 when purchased along with this coil-over kit. Click on the option button above to add a lower shock mount to this order at a discounted price.

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Fits Koni shocks:     
8041-1186S Single Adjustable    
8042-1134S Double Adjustable

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This same kit with springs included is purchased under our package, COP-6. 

You will need to purchase our Racing Upper Shock Mounts for use with this kit. MMSM-3

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Rear Coil-Over conversion kit for Koni 30-Series shocks (solid axle). This kit comes with Hypercoil springs in your choice of spring rate. Consult your MM sales department for help choosing spring rates for your particular car and driving habits. This kit can be purchased without springs as a MMCO-6.

You will need to purchase our Racing Upper Shock Mounts for use with this kit. MMSM-3

Required: If your Mustang does NOT have a MM Panhard Bar, installing this rear coil-over kit REQUIRES an additional MMSM-2 Lower Shock Mount. The MMSM-2 is discounted to $25 when purchased along with this coil-over kit. Click on the option button above to add a lower shock mount to this order at a discounted price.

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Maximum Motorsports Lower Shock Mount for use with Coil-Over kit

If you do not have our Panhard Bar on your solid axle equipped Mustang, you will need to buy this extra lower shock mount when converting to coil-over suspension. The panhard bar mount has a sturdy mount for attaching the lower shock, but without this, the stock lower shock mount is not strong enough to support the weight of the car. One is included in each of our rear coil-over kits, but this second one may be required if you don't yet have our panhard bar.Learn More

Adjust ride height easily.    
Reduce weight.    
Improve handling without degrading ride quality.     
Nearly any spring rate is available, from very soft to extremely stiff, in 25 lb/in increments.    
Compatible with stock k-members and stock front control arms.    
Designed for proper fitment with specific struts; these are not universal-fits-nothing-well kits.    
Superior design, engineering, and manufacturing; all done in the U.S.A.

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