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MM News

NASA Racers! MM will support NASA road racers with $1,000 contingency prizes for the American Iron, American Iron Extreme, and Spec Iron at the 2019 National Champions. You must register to be eligible.

New! Read the article Maximum Motorsports Tames Fox & SN95 Mustang Rear Suspensions on FordMuscle.com.

MRT Exhaust! MM now offers premium MRT cat-back exhaust systems for 1996-2004 Mustangs.

New! for Street & Strip Mustangs! Big-bore rear wheel cylinders for 1979-1993 Mustang with 9" drum brakes. Improves braking when running big rear tires and front skinnies, and/or different OEM front brakes.

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'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

Matching Mustang spring rates

Each table lists a series of struts and shocks. Within each table, springs are recommended for the different front and rear suspension configurations of a Mustang.

MM Sport Series Spring Recommendations
Stock Location Springs H&R Race
H&R Super Race
Coil-Over Spring Rates
Front Springs 350 - 400 lb/in
Solid Axle Rear Springs 225 - 300 lb/in
IRS Rear Springs 500 - 600 lb/in



MM2 Race Series Spring Recommendations
Stock Location Springs H&R Super Race
Coil-Over Spring Rates
Front Springs 400 - 425 lb/in
Solid Axle Rear Springs 275 - 325 lb/in
IRS Rear Springs 600 - 650 lb/in



MM3 Race Series Spring Recommendations
Stock Location Springs Not recommended
Coil-Over Spring Rates
Front Springs 450 - 500 lb/in
Solid Axle Rear Springs 325 - 375 lb/in
IRS Rear Springs 650 - 700 lb/in



Bilstein Heavy Duty (HD) Series Spring Recommendations
Stock Location Springs MM Road & Track
H&R Race
H&R Super Sport
H&R Sport
Eibach Pro-Kit
Stock Springs
Coil-Over Spring Rates
Front Springs 250 - 325 lb/in
Solid Axle Rear Springs 175 - 250 lb/in
IRS Rear Springs 475 - 525 lb/in



Bilstein OEM 2000 Cobra R Spring Recommendations
Stock Location Springs Ford 2000 Cobra R
Coil-Over Spring Rates
Front Springs Not recommended
Solid Axle Rear Springs Not available
IRS Rear Springs 575 - 650 lb/in



Tokico Premium Performance Spring Recommendations
Stock Location Springs Stock Springs
Eibach Pro-Kit
H&R Sport
Coil-Over Spring Rates
Front Springs Not recommended
Solid Axle Rear Springs Not available
IRS Rear Springs Not available



Tokico Illumina Spring Recommendations
Stock Location Springs Stock Springs
Eibach Pro-Kit
H&R Sport
H&R Super Sport
H&R Race
Coil-Over Spring Rates
Front Springs 250-325 lb/in
Solid Axle Rear Springs Not available
IRS Rear Springs Not available



Tokico D-Spec Spring Recommendations
Stock Location Springs Stock Springs
Eibach Pro-Kit
H&R Sport
H&R Super Sport
H&R Race
H&R Super Race
Coil-Over Spring Rates
Front Springs 150-375 lb/in
Solid Axle Rear Springs Not available
IRS Rear Springs Not available



Koni Single Adjustable Sport Spring Recommendations
Stock Location Springs Stock Springs
MM Road & Track
Eibach Pro-Kit
H&R Sport
H&R Super Sport
H&R Race
Coil-Over Spring Rates
Front Springs 275-375 lb/in
Solid Axle Rear Springs Not available
IRS Rear Springs 475-525 lb/in



Koni Double Adjustable Sport Spring Recommendations
Stock Location Springs MM Road & Track
H&R Race
H&R Super Race
Coil-Over Spring Rates
Front Springs 325-525 lb/in
Solid Axle Rear Springs 200-375 lb/in
IRS Rear Springs Not available