QA1 MOD Series Rear Pro Coilover Kit, 130 lbs/in Rate - 1964-1972 Pontiac GTO RX-2 5 kg/mm Spring Rate -

5 kg/mm Spring Rate - Rear 12 kg/mm Spring Size - Front 62-230-6

Rear Lower Coil Spring Pad Bushing - +16mm Ride HeightXXXRear Control ArmXXXFront Right Lower Control ArmXXXRear Lower Control Arm (Pair)XXXRear Lower Inner and Outer Control Arm Bushing

and ZL1 V8 models

2014 Audi R8 Cabrio V8/V10 (Type 42)

1968 Mercedes-Benz 280SE

QA1 MOD Series Rear Pro Coilover Kit, 130 lbs/in Rate - 1964-1972 Pontiac GTO RX-2 5 kg/mm Spring Rate -don't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1964 1972 Pontiac GTO to meet the demands required by today's high performance drag race and handling pro touring cars, QA1's multi patent pending MOD Series shock will transform the way racers respond to changing track conditions and configurations. The key element to this tunability is QuickTune Technology: dry modular valve packs