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.

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

Koni Package, DA Struts & Shocks, 1987-93 V8 (no IRS)
Actual product may differ from photo.


  • Item # KONI-1
  • Manufacturer: Koni


Larger Image

Koni Package of Double-Adjustable Sport Series struts & shocks, 1987-93V8 Mustang, solid axle (no IRS)

  • Suitable for both stock location springs and coil-over conversions. See chart below for spring recommendations.
  • Includes two 8742-1121S struts
  • Includes two 8042-1134S shocks

For more details and technical information, scroll down.

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
  • For aggressive street driving, autocross, road racing, and drag racing
  • Separate external adjustments for rebound and compression
  • Twin-tube strut design
  • Gas pressure reduces oil foaming
  • Includes external rear shock bump stops
  • Does not include front dustcovers
  • Includes rear dustcovers
  • Ready to accept the MM front coil-over conversion kit without modification
  • Ready to accept the MM rear coil-over conversion kit without modification
  • Limited 1-year warranty

International Orders
We sell and ship Koni products only to customers within the United States and Canada, as per our Koni distributorship contract. If you are not in the US or Canada, please order from a Koni distributor located within your country.

Tech links