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QA1 Coilover Set - MD402-10400C

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Kit, Pro-Coil Aluminum D-Adj, 10-400 Tapered Flat Lrg
Manufacturer: QA1
Manufacturer part number: MD402-10400C
Old price: $1,196.41
$1,079.95
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Bring modern suspension technology to your classic Mustang with QA1’s Front Pro Coil System. Designed for 1967–1973 Mustangs, this double adjustable coilover kit delivers unmatched handling, ride quality, and stance control. Featuring 10” coil springs with a 400 lb./in. rate, it provides the ideal balance for performance street cars and restomod builds, giving you precision tuning for both comfort and control. PRECISION HANDLING & ADJUSTABILITY QA1’s double adjustable coilovers feature independent rebound and compression controls with 18 clicks each. This allows you to fine-tune your Mustang’s ride and handling for daily driving, spirited cruising, or track use - giving you total control over how your car feels on the road. RIDE HEIGHT FLEXIBILITY Dial in your stance with ride height adjustability from factory stock height down to 2” lower. Perfect for achieving the aggressive look you want while maintaining suspension geometry and drivability. EASY BOLT-IN INSTALLATION No welding or cutting is required. The QA1 Pro Coil System is engineered as a direct bolt-in upgrade, making installation simple with basic tools while delivering professional-level results.

Note: FITMENT NOTES: Fits 1967–1973 Ford Mustangs: Ride height adjustable: factory to –2”: Includes double adjustable shocks and 10” 400 lb./in. springs: Works with factory control arms or QA1 tubular control arms and sway bars (available for 67-70 Mustangs only): Bolt-in installation — no welding required: Sold as a pair

Products specifications

Attribute name Attribute value
Prop 65 Yes/No Yes
Prop 65 - Short Label WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Brand QA1
Manufacturer Part Number MD402-10400C
UPC 806990158673
Internal Construction Type Dual Tube
Assembled No
Remote Reservoir No
Active or Passive Suspension Passive
Grade Type Performance
Spring Color Silver
Adjustable Compression Yes
Adjustable Ride Height Yes
Adjustable Rebound Yes
Spring Material High Tensile Chrome Silicon
🚗 Compatible with
7 vehicles are compatible with this product · 1967–1973
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