QA1 MOD Series Front Coilover Kit - Double Adjustable, Large Tapered Flat Spring, 250 lbs/in Rate - 1975 Buick Apollo Challenger These RC300h coilovers are built

These RC300h coilovers are built around a digressive monotube damper and world-famous Eibach ERS Motorsport springs

R/T Turbo (Z11A/Z16A)

8TFSI Quattro / 2

2020 Infiniti Q60 Red Sports RWD

SV (D40) covering front and rear eyes of the leaf plus shackle bushings

QA1 MOD Series Front Coilover Kit - Double Adjustable, Large Tapered Flat Spring, 250 lbs/in Rate - 1975 Buick Apollo Challenger These RC300h coilovers are builtdon't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1975 Buick Apollo 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