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QA1 High Performance Suspension, Driveshafts, Rod Ends & More
QA1 puts you in complete control with high performance suspension components and more for your circle track, drag racing, off-road, or street vehicle! Features like...
QA1 puts you in complete control with high performance suspension components and more for your circle track, drag racing, off-road, or street vehicle! Features like deflective disc valving, customizable compression and rebound, and lightweight aluminum construction have made QA1 shocks number one in the industry, and Summit Racing’s extensive selection makes it easy to get it all for your vehicle with the best prices anywhere! Pair them up with a set of custom-rate coil springs, heavy-duty Chromoly rod ends, and tubular chassis components for a one-of-a-kind suspension setup that you’ll only get from QA1!
QA1 puts you in complete control with high performance suspension components and more for your circle track, drag racing, off-road, or street vehicle! Features like deflective disc valving, customizable compression and rebound, and lightweight aluminum construction have made QA1 shocks number one in the industry, and Summit Racing’s extensive selection makes it easy to get it all for your vehicle with the best prices anywhere! Pair them up with a set of custom-rate coil springs, heavy-duty Chromoly rod ends, and tubular chassis components for a one-of-a-kind suspension setup that you’ll only get from QA1!
Featured Products
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 150 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD01-14150
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 200 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD01-12200
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 200 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD03-12200
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 200 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD02-12200
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 300 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD03-12300
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 300 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD01-12300
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 150 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD03-14150
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
QA1 Proma Star Double Adjustable Coilover Systems for 1994-2004 MUSTANG - HD03-12200
Not Yet Reviewed
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 300 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD02-12300
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 150 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD02-14150
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
QA1 Proma Star Double Adjustable Coilover Systems for 1979-1989 MUSTANG - HD01-14150
Not Yet Reviewed
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Rear, Twin-tube Shocks, 450 lbs./in. Spring Rate, Chevrolet, Pair
Part Number: QA1-RCK52470
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Twin-tube, 250 lbs./in. Rate Springs, Chevrolet, Pontiac, Pair
Part Number: QA1-HD06-12250
Not Yet Reviewed
Estimated Ship Date: Mar 2, 2026 if ordered today
Estimated Ship Date: Mar 2, 2026 if ordered today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Twin-tube, 170 lbs./in. Rate Springs, Chevrolet, Pontiac, Pair
Part Number: QA1-HD06-12170
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Rear, Twin-tube Shocks, 550 lbs./in. Spring Rate, Chevrolet, Pair
Part Number: QA1-RCK52471
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Rear, Twin-tube Shocks, Eyelet Mounts, 175 lbs./in. Spring Rate, Ford, Pair
Part Number: QA1-RCK52407
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Conversion, Single Adjustable Shocks, 650 lb. Spring Rate, Upper and Lower Control Arms, Tubular, Black Powdercoated, Chevy, GMC, Kit
Part Number: QA1-52619-S650
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Coilover Conversion, Single Adjustable Shocks, 850 lb. Spring Rate, Upper and Lower Control Arms, Tubular, Black Powdercoated, Chevy, GMC, Kit
Part Number: QA1-52619-S850
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Coilover Conversion, Single Adjustable Shocks, 750 lb. Spring Rate, Upper and Lower Control Arms, Tubular, Black Powdercoated, Chevy, GMC, Kit
Part Number: QA1-52619-S750
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover, Front, Twin-tube Shocks, 550 lbs./in. Rate Springs, 1.0-2.0 in. Lowered Front, Chevrolet, Pair
Part Number: QA1-GD455-08550
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Rear, Twin-tube Shocks, Eyelet Mounts, 130 lbs./in. Spring Rate, Ford, Pair
Part Number: QA1-RCK52406
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Rear, Twin-tube Shocks, Eyelet Mounts, 95 lbs./in. Spring Rate, Ford, Pair
Part Number: QA1-RCK52405
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Twin-tube, 350 lbs./in. Rate Springs, Chevrolet, Pontiac, Pair
Part Number: QA1-HD06-10350
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Twin-tube, 150 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD05-14150
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Coilover Kits, Proma Star Double Adjustable Coilover, Front, Twin-tube Shocks, 450 lbs./in. Rate Springs, 1.0-2.0 in. Lowered Front, Chevrolet, Pair
Part Number: QA1-GD455-08450
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Coilover Kit, MOD Coilover System, Rear, Double Adjustable, 175 lbs./in. Spring Rate, Buick, Chevy, GMC, Oldsmobile, Pontiac, Kit
Part Number: QA1-RCK52442
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Twin-tube, 200 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD05-12200
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
