⚡ Elevate your Crown Vic’s performance and style—because average just won’t do.
The QA1 MS431-09550 front adjustable coil-overs feature a 550 lb spring rate and fully threaded bodies for precise ride height and handling adjustments. Designed for GM GEN III LS1 and LS6 engines, these American-made lightweight springs reduce unsprung weight and increase suspension travel, delivering superior responsiveness and a custom-tuned driving experience.
| Brand | QA1 |
| Auto Part Position | Driveline |
| Style | Modern |
| Vehicle Service Type | Car |
| Exterior Finish | Anodized |
| Material | Aluminum |
| UPC | 806990159915 |
| Manufacturer | QA1 Precision Products |
| Model | QA1 |
| Item Weight | 23 pounds |
| Product Dimensions | 25.4 x 15.1 x 12.7 inches |
| Item model number | MS431-09550 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | MS431-09550 |
D**Z
Awesome setup
Coil overs are awesome. Fit great instructions are great.
Trustpilot
3 weeks ago
1 day ago
