Upgrade your classic Mustang’s suspension with QA1’s Pro Coil System. Engineered for 1964–1966 Mustangs, this single adjustable coilover kit offers modern handling, ride quality, and stance adjustability in a straightforward, bolt-in package. Featuring a 10” coil spring with a 400 lb./in. rate, it’s an excellent choice for restomods and street-driven cars that need sharper handling and improved control. MODERN HANDLING & CONTROL Factory suspension designs limit tuning and performance. QA1’s single adjustable coilovers let you fine-tune rebound and compression together with 18 adjustment settings. With one knob, you can soften the ride for cruising or firm it up for aggressive driving, giving you the flexibility to match your Mustang’s style. RIDE HEIGHT FLEXIBILITY This system allows you to adjust ride height from factory stock height down to 2” lower. Whether you’re keeping an original look or going for a lower stance, QA1 Pro Coils let you achieve the right height without sacrificing suspension geometry or drivability. EASY BOLT-IN INSTALLATION No welding or cutting required. QA1 designed this system as a direct bolt-in replacement that installs with basic hand tools, making it a perfect upgrade for DIY enthusiasts.
Installation InstructionsThis Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1964-1966 | Ford | Mustang | Base |
| 1965-1966 | Ford | Mustang | Shelby GT-350 |
| 1966 | Ford | Mustang | Shelby GT-350H |
Bull Strap products are the highest grade cut and sewn items in the automotive industry. We are proud to support USA workers in our bid to manufacture right here in the United States.
WARRANTY
Bull Strap guarantees all products to be free from manufacturer defects for all items for one year, and any color fading (where mentioned) for 2 years from the time of purchase. In the event of a product failure, Bull Strap will decide whether that product should be repaired or replaced after reviewing photos submitted by the customer. Bull Strap will then provide a return shipping label for any product in which the material or stitching were determined to be the root cause. Once received, the product will be repaired or replaced and returned to the customer at no cost.
REFUND POLICY
Seat covers and other custom made items, retain all warranties listed above, but cannot be refunded or exchanged at any time
On non-custom items, if within 30 days of purchase directly from Bull Strap, a customer would like to return an unused product with no modifications, and where the item(s) can be considered 'new in box', the customer can email us at info@bullstrap.com or call us at 951-319-4008. The will be a 15% restocking fee subtracted from any returned items. Once processed, the customer must ship the product back and submit the tracking information. Bull Strap will issue a full refund minus the 15% restocking fee once the item(s) is/are received and determined to be in 'Brand New' condition. NOTE: If a customer ordered Bull Strap products from a dealer, the customer must go through this process directly with the dealer the product was ordered from.
As always, we strive to provide the best product and customer service available...but we are definitely not perfect. If at any time, you have any issues, please contact us, so we can address any problems you may have. Thanks!
Coming Soon