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) Â |Â Safety Data Sheet (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1992-1995 | Chevrolet | Corvette | ZR-1 |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- 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 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
