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If you've outgrown entry-level lowering springs and want a real coilover system that rewards a harder-driven 911
2008 Nissan 350Z Base (Z33)
2005 Mitsubishi Lancer Evolution EVO 8/9
Spring Rate 600 lbs/in Block Height 3
1997 Porsche 911 993
QA1 MOD Series Front Coilover Kit - Double Adjustable, Tapered Pigtail Spring, 600 lbs/in Rate - 1965-1967 Buick Gran Sport Renault If you've outgrown entry-level loweringdon't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1965 1967 Buick Gran Sport 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
