QA1 MOD Series Front Coilover Kit - Double Adjustable, Tapered Flat Spring, 350 lbs/in Rate - 1968-1972 Pontiac GTO i-280 Progressive-rate coils sharpen the WRX's

Progressive-rate coils sharpen the WRX's turn-in response while keeping the ride livable on real roads

faster transient response

5” upper ID with a 5” lower seat

RS-R Sports-i coilovers for the 2014+ Infiniti Q50 3

2018 Audi A3 FWD

QA1 MOD Series Front Coilover Kit - Double Adjustable, Tapered Flat Spring, 350 lbs/in Rate - 1968-1972 Pontiac GTO i-280 Progressive-rate coils sharpen the WRX'sdon't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1968 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