Collection: QA1

Performance Suspension. Since 1993.
QA1
QA1 started in 1993 building rod ends, spherical bearings and custom linkages for racers, then moved into shock manufacturing with the purchase of Hal Shocks in 1998 and Carrera Shocks in 2004. Today the company designs and builds shocks, struts, suspension components and carbon composite driveshafts in more than 100,000 square feet of its own manufacturing space in Lakeville, Minnesota, under an ISO 9001 certified quality system.
Single & Double Adjustable DampingBuilt in Lakeville, MinnesotaISO 9001 Certified
What We Carry from QA1
Pro Coil, Proma Star & Stocker Star coil-over shocks
Full-vehicle suspension kits for GM A/B/G/F/X-body, Mopar & Mustang
Tubular control arms, K-members, sway bars & crossmembers
Rod ends, spherical bearings, jam nuts & linkages
REV Series carbon fiber driveshafts
Big Wheel suspension kits & C10 conversion systems
QA1 builds for street performance, drag racing, circle track and street rods — most shocks are single or double adjustable, so ride and rebound can be dialed in after the car is on the ground.
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Vendor:QA1
QA1 1971-1996 GM B-Body Big Wheel Sway Bar Kit Rear 1-1/4in
✓ In Stock • Ready to ShipRegular price $ 527.02Regular price$ 579.73Sale price $ 527.02Sale -
Vendor:QA1
QA1 1967-1969 GM F-Body 4-Link Sway Bar Kit Rear 7/8in
✓ In Stock • Only 4 leftRegular price $ 372.95Regular price$ 410.25Sale price $ 372.95Sale -
Vendor:QA1
QA1 1978-1988 GM G-Body Big Wheel Sway Bar Kit Front 1-3/8in
✓ In Stock • Only 1 leftRegular price $ 501.17Regular price$ 551.29Sale price $ 501.17Sale -
Vendor:QA1
QA1 1971-1976 GM B-Body Sway Bar Kit Front 1-3/8in
✓ In Stock • Ready to ShipRegular price $ 442.52Regular price$ 486.78Sale price $ 442.52Sale -
Vendor:QA1
QA1 1.625in Components Ball Joint Kit
✓ In Stock • Only 2 leftRegular price $ 41.06Regular price$ 45.17Sale price $ 41.06Sale -
Vendor:QA1
QA1 1967-1969 GM F-Body Subframe Connector Kit
✓ In Stock • Only 2 leftRegular price $ 564.78Regular price$ 621.26Sale price $ 564.78Sale -
Vendor:QA1
QA1 1994-2004 Ford Mustang Control Arm Kit Lower Street Perform
✕ Out of StockRegular price $ 492.22Regular price$ 541.45Sale price $ 492.22Sold out -
Vendor:QA1
QA1 1971-1976 GM B-Body Control Arm Kit Lower Street Perform
✓ In Stock • Only 4 leftRegular price $ 865.00Regular price$ 951.50Sale price $ 865.00Sale -
Vendor:QA1
QA1 2007-2018 Chevrolet Silverado 4WD 10-950 Kit Front Pro-Coil D-Adj
✓ In Stock • Only 1 leftRegular price $ 1,288.47Regular price$ 1,417.32Sale price $ 1,288.47Sale -
Vendor:QA1
QA1 1978-1988 GM G-Body 12-200 Kit Rear Pro-Coil D-Adj
✕ Out of StockRegular price $ 1,118.49Regular price$ 1,230.34Sale price $ 1,118.49Sold out -
Vendor:QA1
QA1 1971-1976 GM B-Body 12-250 Kit Rear Pro-Coil D-Adj
✓ In Stock • Ready to ShipRegular price $ 1,058.84Regular price$ 1,164.73Sale price $ 1,058.84Sale -
Vendor:QA1
QA1 1979-2004 Ford Mustang 12-130 Kit Rear Pro-Coil S-Adj
✓ In Stock • Only 4 leftRegular price $ 914.70Regular price$ 1,006.17Sale price $ 914.70Sale -
Vendor:QA1
QA1 1997-2013 Chevrolet Corvette 8-550 X 2.25in ID Kit Pro-Coil Front Aluminum MOD
✓ In Stock • Only 2 leftRegular price $ 2,423.68Regular price$ 2,666.05Sale price $ 2,423.68Sale -
Vendor:QA1
QA1 2005-2014 Ford Mustang Proma Star Coilover Strut Kit Double Adjust 150lb/in.
✓ In Stock • Only 2 leftRegular price $ 1,825.27Regular price$ 2,007.80Sale price $ 1,825.27Sale -
Vendor:QA1
QA1 1990-1993 Ford Mustang Proma Star Coilover Strut Kit Double Adjust 200lb/in.
✕ Out of StockRegular price $ 1,825.27Regular price$ 2,007.80Sale price $ 1,825.27Sold out -
Vendor:QA1
QA1 1994-2004 Ford Mustang Proma Star Coilover Strut Kit Single Adjust
✕ Out of StockRegular price $ 1,627.20Regular price$ 1,789.92Sale price $ 1,627.20Sold out