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Maximum Motorsports 99-04 Cobra Super Street/Competition IRS Grip Package

SKU: MM-MMRG-21.5

Manufacturer: Maximum Motorsports

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Availability: In stock

$954.74

Maximum Motorsports 99-04 Cobra Super Street/Competition IRS Grip Package

*image is only a representation and may not be accurate

This Grip Box takes the Street IRS Grip Box a step further, enhancing performance to be suitable for competition. Improves handling and reduces wheel hop.

Benefits

Eliminates deflection allowed by stock rubber bushings
Greatly reduces wheel hop because there is no bushing deflection
Precisely locates the control arms for improved dynamic alignment
Handling is greatly improved because there are no unpredictable camber changes caused by bushing deflection
NVH and ride comfort virtually unchanged
Installation tools included, the key to a hassle-free installation

This Grip Box includes:

Urethane Differential Bushings - MMIRSB-45
Delrin Upper Control Arm Bushings - MMIRSB-2
Delrin Lower Control Arm Bushings - MMIRSB-1
Urethane Subframe Bushings - MMIRSU-1
IRS Adjustable Complete Tie-Rod Kit - MMIRSTR-2
Adjustable Rear Swaybar Endlinks - MMRSB-94
Low Profile Subframe Bolts, rear mounts - MMF-1
14MM Subframe Hardware, front mounts - MMF-4
Specialty tools and detailed instructions to make the job a breeze

What's different from the MMRG-21 Street Grip Box?

The complete adjustable tie-rod kit is substituted for the outer tie-rod end bumpsteer kit.
Low profile subframe mounting bolts are added to improve clearance for wide tires.
14MM mounting hardware is included to replace the stock 12MM hardware at the forward subframe mount that allows undesirable movement.

IRS Tech

MM delivers on the unfulfilled promises of the stock IRS. Enjoy the track performance and reliability of an MM-equipped Mustang IRS. This rear Grip Box will transform your Cobra into a true high performance automobile, with world-class handling and traction.

Handling is improved and wheel hop reduced by eliminating deflection allowed by the stock rubber control arm bushings. Delrin bushings precisely locate the rear control arms, and maintain rear wheel alignment in a manner that is impossible with the compliant stock rubber bushings. Rubber bushings provide barely adequate suspension control. They cannot accurately position the control arms well enough to achieve maximum performance from the suspension.

Wheel hop is a major complaint about IRS-equipped Mustangs. The un-damped compression of the rubber bushings in the rear suspension is the primary cause of wheel hop. That un-damped movement is amplified by repeated loss of traction. Wheel hop occurs because the rear tires continually oscillate between losing and then regaining traction. The extremely soft stock rubber bushings are the biggest contributor to this oscillation. The rubber compresses easily and then springs back, over and over again. To reduce wheel hop the stock rubber bushings must be eliminated.

Manufacturer Maximum Motorsports

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