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QA1 MOD Series Pro Coilover Systems
Not Yet Reviewed
Once the desired valving is in place, the unique double-adjustable design (with adjustable low-speed bleed) allows for fully independent control over the compression and rebound characteristics. With all these adjustability options, MOD Series shocks achieve an expansive force curve capability and an unprecedented level of tunability. The shocks also feature mounting adjustability to accommodate a variety of vehicles and mounting configurations. The nitrogen-charged canister is available in a piggyback or remote configuration for ease of installation in tight areas, and the base eyelet is indexable, so you can unbolt and reattach it at the angle you need for the best shock and canister placement. Like all QA1 shocks, MOD Series coilovers are 100 percent dyno-tested and serialized. Order the kit recommended for your vehicle.
Coilover Kit, MOD Series Pro, Front, Twin-Tube, 0.0-2.0 in. Lowered, Aluminum Body, Black Anodized, 450 lbs./in. Spring Rate, Kit
Part Number: QA1-MG501-10450C
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, 0.0-2.0 in. Lowered, Aluminum Body, Black Anodized, 400 lbs./in. Spring Rate, Kit
Part Number: QA1-MG501-10400A
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, 0.0-2.0 in. Lowered, Aluminum Body, Black Anodized, 500 lbs./in. Spring Rate, Kit
Part Number: QA1-MG501-10500A
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, 0.0-2.0 in. Lowered, Aluminum Body, Black Anodized, 500 lbs./in. Spring Rate, Kit
Part Number: QA1-MG501-10500C
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, Aluminum Body, Black Anodized, 650 lbs./in. Spring Rate, Buick, Chevy, Oldsmobile, Pontiac, Kit
Part Number: QA1-MG501-10650A
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, Aluminum Body, Black Anodized, 300 lbs./in. Spring Rate, Buick, Chevy, Oldsmobile, Pontiac, Kit
Part Number: QA1-MG501-11300A
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, Aluminum Body, Black Anodized, 250 lbs./in. Spring Rate, Buick, Chevy, Oldsmobile, Pontiac, Kit
Part Number: QA1-MG501-11250A
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, Aluminum Body, Black Anodized, 550 lbs./in. Spring Rate, Buick, Chevy, Oldsmobile, Pontiac, Kit
Part Number: QA1-MG501-10550A
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, 0.0-2.0 in. Lowered, Aluminum Body, Black Anodized, 350 lbs./in. Spring Rate, Kit
Part Number: QA1-MG501-10350A
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, Aluminum Body, Black Anodized, 600 lbs./in. Spring Rate, Buick, Chevy, Oldsmobile, Pontiac, Kit
Part Number: QA1-MG501-10600A
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, 0.0-2.0 in. Lowered, Aluminum Body, Black Anodized, 400 lbs./in. Spring Rate, Kit
Part Number: QA1-MG501-10400C
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, 0.0-2.0 in. Lowered, Aluminum Body, Black Anodized, 450 lbs./in. Spring Rate, Kit
Part Number: QA1-MG501-10450A
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Coilover Kit, MOD Series Pro, Front, Twin-Tube, 0.0-2.0 in. Lowered, Aluminum Body, Black Anodized, 350 lbs./in. Spring Rate, Kit
Part Number: QA1-MG501-10350C
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
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