981 GT4 SPM Stage 1 & Stage 1+ Suspension Package

Regular price $2,212.95

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SP Motorsports Stage Suspension Package

Fully developed for the 981 GT4 chassis. Our staged suspension packages deliver added adjustability while removing unwanted suspension deflection from rubber bushings resulting in more grip.

Stage 1 Includes:

  • Adjustable Drop Links Front & Rear
  • Adjustable Front Thrust Arms(RSR Tension Rods)
  • Solid Thrust Arm Bushings
  • Adjustable Rear Toe Links
  • Toe Locking Plates

Stage 1+ Includes:

  • Adjustable Drop Links Front & Rear
  • Adjustable Front Thrust Arms(RSR Tension Rods)
  • Solid Thrust Arm Bushings
  • Adjustable Rear Toe Link
  • Toe Locking Plate
  • SPM GT4 Front Spring Kit

The Stage 1 Suspension Package immediately addresses suspension adjustability, front end steering response & grip.

By adding RSR style adjustable front thrust arms and solid front thrust arm bushings, we can achieve target track alignment while correcting front caster. Thus eliminating any fender and fender liner rubbing. Additionally, the solid front thrust arm bushing removes the factory rubber, therefore adding suspension responsiveness.

Adjustable front & rear sway bar links allow for an effective chassis corner balance by eliminating any suspension preload from sway bars. The links also remove the factory bushings & provide better sway bar geometry.

With the stock rear toe link, the adjustability is limited by the design and functionality of the eccentric adjustment. GT4 stock can only achieve a maximum of -1.6 to -1.7 degrees of negative camber. By installing the motorsport style rear toe link, we can accomplish a proper track alignment with the proper camber & toe setting these cars require. Simultaneously we remove the rear eccentric adjuster and replace with a locking plate to eliminate alignment changes from eccentric movement.

This package allows for the front track to be widened without compromising fender and fender liner clearance. This is a critical part of maximizing performance at the same time, allowing the proper fitment of aftermarket wheels & tires.

With upgrade to Stage 1+, adding the upgraded springs to the front, we can continue to provide the front chassis more support and subsequently, gaining rear grip. This spring package continues to utilize the rear progressive spring to the fullest, improving front-end response & chassis comfort.