The B6 Performance is Bilstein's bolt-in upgrade over a worn factory damper, valved for this specific application and designed to work with the OE spring rather than requiring a matched set of new ones. It is a monotube gas pressure design, which fits a larger working piston in the tube than a comparable twin-tube and keeps damping consistent as the oil heats up on a back road or a long sweeper. This damper measures 9.65 in collapsed and 13.88 in extended, locates with a bar pin at the bottom and a stem at the top, and arrives in Bilstein's yellow paint with a straight boot fitted.
Specifications
| Type | Monotube gas pressure shock absorber (Bilstein B6 Performance) |
| Position | Front |
| Collapsed Length | 9.65 in (245.0 mm) |
| Extended Length | 13.88 in (352.5 mm) |
| Lower Mount | Bar pin |
| Upper Mount | Stem |
| Finish | Yellow paint |
| Boot | Yellow straight boot included |
| Spring Seat | Not included |
| Weight | 5.05 lbs |
| Quantity | 1 (sold individually; 2 required per axle) |
| Part Number | 20-070274 |
| OEM Replacement | GM 22089144 |
| Warranty | Bilstein limited lifetime warranty, original purchaser, non-transferable |
Documents: Installation Instructions (PDF) | Safety Data Sheet (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1992-1995 | Chevrolet | Corvette | ZR-1 |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
