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Condition notes recorded before palletizing.
30-Day Startup Warranty
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Auto Parts & Accessories
QA1 Mopar Front Street Performance Coilover Conversion Systems 52343-S400
€3,066.89
+ freight from €149.00, insured road freight, priced by delivery region
(rates)
From €3,215.89 delivered
- ISPM 15 heat-treated Euro palletized & weatherproof shrink-wrapped
- Insured European road freight delivery with hydraulic tail-lift service
- Dispatches in 1–2 business days from our UK & European Logistics Centre
- Transit typically 1–3 business days (UK) / 3–6 business days (Continental Europe)
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
The 52343-S400 swaps the torsion-bar front end on a classic Dodge or Plymouth B/E-body, Charger and Road Runner among them, for a QA1 crossmember, tubular control arms, and a single-adjustable coilover carrying a 400 lbs./in. spring. A rack-and-pinion rack with hydraulic assist takes over steering duty from the stock box.
What to check before buying
Brakes stay your own responsibility here; no disc kit is bundled in, though QA1 says the front end accepts stock-style or aftermarket rotors and calipers either way. Spindles sit at stock height, and the crossmember geometry leaves room for several engine options, Gen 3 Hemi swaps included, so repower plans should still fit.
What comes with it
Steel construction throughout gets a powdercoated finish, spindles matching the crossmember's stock-height design, plus tie rod ends and all mounting hardware for the swap. Nothing in the box calls for welding; it is a bolt-in replacement for the factory pieces.
Does it include brakes? No, rotors and calipers are sourced separately.
How much drop does it give? Up to 2 inches below stock height.
Specifications
| Feature | Details |
|---|---|
| Brand | QA1 |
| Manufacturer Part # | 52343-S400 |
| Product Type | Front Suspension Package |
| Crossmember Included | Yes (Steel, Powdercoated) |
| Welding Required | No |
| Spindle Type | Stock Height |
| Spindle Material | Steel (Black Powdercoated) |
| Upper Control Arms | Yes (Tubular Steel) |
| Lower Control Arms | Yes (Tubular Steel) |
| Shock Type | Single-Adjustable Coilover |
| Coilover Spring Rate | 400 lbs./in. |
| Rack & Pinion Steering | Yes (Hydraulic Power Assist) |
| Steering Rack Color | Black |
| Brake Kit Included? | No |
| Ride Height Adjustment | 0 to 2 inches of drop |
| Tie Rod Ends Included? | Yes |
| Mounting Hardware Included? | Yes |
| Installation Type | Bolt-On |
| Quantity | Sold as a Kit |
Performance Installation & Verification Checklist
- Disconnect vehicle battery ground terminal before installing any electrical, sensor, or powertrain hardware.
- Inspect all vacuum lines, fuel lines, and wiring harness connectors for secure, leak-free engagement.
- Calibrate electronic sensors, boost control solenoids, and ECU maps according to manufacturer instructions.
- Perform initial datalogging check under light load before subjecting vehicle to wide-open throttle.
Full terms: 30-day warranty · returns
