FAQs & Tech Tips

MM News

New! MM Technical Services: MM’s Engineering Team will provide setup recommendations specifically tailored for your Mustang. Get help choosing options for a Maximum Grip Box, deciding on coil-over spring rates, selecting a brake master cylinder, and advice on converting your Fox to Hydroboost.

New! Swapping a Coyote into a Fox Mustang? MM's Hydroboost Conversion Kits allow easy installation of a 1996-2004 Mustang Hydroboost power brake assist unit into a 1979-1993 Mustang.

New! Swapping an IRS into your Fox Mustang? MM makes it easier with a brake line kit made just for this conversion. Bolts-in, with no cutting or flaring of brake lines. Designed to fit standard IRS brake hoses.

New! MM now offers a tool for the giant nut securing a Mustang Hydroboost. This MM socket fits the 1-7/8" nut holding the Hydroboost to the firewall mount. Required when changing a Hydroboost unit.

New! MM's billet aluminum Pedal Box Spacer for Fox Mustangs. Replace the breakage-prone OEM plastic spacer when converting to manual brakes or Hydroboost.

Canadians! Please read the latest about ordering from Canada/shipping to Canada.

/DRIVE
We've posted the parts list and link to the video of MM's Mustang in /DRIVE Tuner car Shootout

Displaying 1 - 19 of 19 results  
Product ImageProduct(s)-Part #Price
MM Coil-over Spring, 175 lb/in, 11", 2-1/4" diameter

MM Coil-over Spring, 175 lb/in, 11", 2-1/4" diameter

MM-designed this barrel-shaped spring for rear coil-over conversions in 1979-2004 Mustangs. Does NOT fit 1980-1988 Thunderbird because the barrel-shape of the spring interferes with the unique Thunderbird rear shock tower.
225.175.11 $78.97

... more info

MM Coil-over Spring, 200 lb/in, 10", 2-1/4" diameter

MM Coil-over Spring, 200 lb/in, 10", 2-1/4" diameter

MM-designed this barrel-shaped spring for rear coil-over conversions in 1979-2004 Mustangs. Does NOT fit 1980-1988 Thunderbird because the barrel-shape of the spring interferes with the unique Thunderbird rear shock tower.
225.200.10 $78.97

... more info

Hypercoil Coil Over Spring, 225 lb/in, 9", 2-1/4" dia. (9A0225)

Hypercoil Coil Over Spring, 225 lb/in, 9", 2-1/4" dia. (9A0225)

Hypercoil Coil-Over Spring, 225 lb/in, 9" long, 2-1/4" inside diameter
HYP22509225 $78.97

... more info

Hypercoil Coil Over Spring, 250 lb/in, 9", 2-1/4" dia. (9A0250)

Hypercoil Coil Over Spring, 250 lb/in, 9", 2-1/4" dia. (9A0250)

Hypercoil Coil-Over Spring, 250 lb/in, 9" long, 2-1/4" inside diameter
HYP25009225 $78.97

... more info

Hypercoil Coil Over Spring, 275 lb/in, 9", 2-1/4" dia. (9A0275)

Hypercoil Coil Over Spring, 275 lb/in, 9", 2-1/4" dia. (9A0275)

Hypercoil Coil-Over Spring, 275 lb/in, 9" long, 2-1/4" inside diameter
HYP27509225 $78.97

... more info

Hypercoil Coil Over Spring, 300 lb/in, 9", 2-1/4" dia. (9A0300)

Hypercoil Coil Over Spring, 300 lb/in, 9", 2-1/4" dia. (9A0300)

Hypercoil Coil-Over Spring, 300 lb/in, 9" long, 2-1/4" inside diameter
HYP30009225 $78.97

... more info

Hypercoil Coil Over Spring, 325 lb/in, 8", 2-1/4" dia. (8A0325)

Hypercoil Coil Over Spring, 325 lb/in, 8", 2-1/4" dia. (8A0325)

Hypercoil Coil-Over Spring, 325 lb/in, 8" long, 2-1/4" inside diameter
HYP32508225 $78.97

... more info

Hypercoil Coil Over Spring, 350 lb/in, 8", 2-1/4" dia. (8A0350)

Hypercoil Coil Over Spring, 350 lb/in, 8", 2-1/4" dia. (8A0350)

Hypercoil Coil-Over Spring, 350 lb/in, 8" long, 2-1/4" inside diameter
HYP35008225 $78.97

... more info

Hypercoil Coil Over Spring, 375 lb/in, 8", 2-1/4" dia. (8A0375)

Hypercoil Coil Over Spring, 375 lb/in, 8", 2-1/4" dia. (8A0375)

Hypercoil Coil-Over Spring, 375 lb/in, 8" long, 2-1/4" inside diameter
HYP37508225 $78.97

... more info

Hypercoil Coil Over Spring, 400 lb/in, 8", 2-1/4" dia. (8A0400)

Hypercoil Coil Over Spring, 400 lb/in, 8", 2-1/4" dia. (8A0400)

Hypercoil Coil-Over Spring, 400 lb/in, 8" long, 2-1/4" inside diameter
HYP40008225 $78.97

... more info

Hypercoil Coil Over Spring, 425 lb/in, 8", 2-1/4" dia. (8A0425)

Hypercoil Coil Over Spring, 425 lb/in, 8", 2-1/4" dia. (8A0425)

Hypercoil Coil-Over Spring, 425 lb/in, 8" long, 2-1/4" inside diameter
HYP42508225 $78.97

... more info

Hypercoil Coil Over Spring, 475 lb/in, 8", 2-1/4" dia. (8A0475)

Hypercoil Coil Over Spring, 475 lb/in, 8", 2-1/4" dia. (8A0475)

Hypercoil Coil-Over Spring, 475 lb/in, 8" long, 2-1/4" inside diameter
HYP47508225 $78.97

... more info

Hypercoil Coil Over Spring, 500 lb/in, 8", 2-1/4" dia. (8A0500)

Hypercoil Coil Over Spring, 500 lb/in, 8", 2-1/4" dia. (8A0500)

Hypercoil Coil-Over Spring, 500 lb/in, 8" long, 2-1/4" inside diameter
HYP50008225 $78.97

... more info

Hypercoil Coil Over Spring, 525 lb/in, 8", 2-1/4" dia. (8A0525)

Hypercoil Coil Over Spring, 525 lb/in, 8", 2-1/4" dia. (8A0525)

Hypercoil Coil-Over Spring, 525 lb/in, 8" long, 2-1/4" inside diameter
HYP52508225 $78.97

... more info

Hypercoil Coil Over Spring, 550 lb/in, 8", 2-1/4" dia. (8A0550)

Hypercoil Coil Over Spring, 550 lb/in, 8", 2-1/4" dia. (8A0550)

Hypercoil Coil-Over Spring, 550 lb/in, 8" long, 2-1/4" inside diameter
HYP55008225 $78.97

... more info

Hypercoil Coil Over Spring, 600 lb/in, 8", 2-1/4" dia. (8A0600)

Hypercoil Coil Over Spring, 600 lb/in, 8", 2-1/4" dia. (8A0600)

Hypercoil Coil-Over Spring, 600 lb/in, 8" long, 2-1/4" inside diameter
HYP60008225 $78.97

... more info

Hypercoil Coil Over Spring, 650 lb/in, 8", 2-1/4" dia. (8A0650)

Hypercoil Coil Over Spring, 650 lb/in, 8", 2-1/4" dia. (8A0650)

Hypercoil Coil-Over Spring, 650 lb/in, 8" long, 2-1/4" inside diameter
HYP65008225 $78.97

... more info

Hypercoil Coil Over Spring, 700 lb/in, 8", 2-1/4" dia. (8A0700)

Hypercoil Coil Over Spring, 700 lb/in, 8", 2-1/4" dia. (8A0700)

Hypercoil Coil-Over Spring, 700 lb/in, 8" long, 2-1/4" inside diameter
HYP70008225 $78.97

... more info

Hypercoil Coil Over Spring, 750 lb/in, 8", 2-1/4" dia. (8A0750)

Hypercoil Coil Over Spring, 750 lb/in, 8", 2-1/4" dia. (8A0750)

Hypercoil Coil-Over Spring, 750 lb/in, 8" long, 2-1/4" inside diameter
HYP75008225 $78.97

... more info