QA1 MOD Series Front Coilover Kit - Double Adjustable, Large Tapered Flat Spring, 550 lbs/in Rate - 1975-1979 Buick Skylark Scion 2010 Porsche 911 GT3 RS

2010 Porsche 911 GT3 RS (997)

1990 Nissan Sentra GXE (B12/B13)

2000 BMW 5 Series V8 AWD/RWD (E39)

2006 Ford Escape Hybrid (CD2)

Every spring produced by H&R comes from H&R's engineering and manufacturing facility in Germany

QA1 MOD Series Front Coilover Kit - Double Adjustable, Large Tapered Flat Spring, 550 lbs/in Rate - 1975-1979 Buick Skylark Scion 2010 Porsche 911 GT3 RSdon't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1975 1979 Buick Skylark 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