Downpipe-Back systems address all the components of the exhaust system that fall after the downpipe. These products also consider the rest of the exhaust system, components involved within the cat- back systems will be supplied with any components that fall after the downpipe to make up the downpipe-back system.
| Vehicle | Chassis | Years | Engine |
|---|---|---|---|
| AudiCoupeAudi > Coupe > UR quattro 10v Turbo > 1981 to 1989 | — | 1981–1989 | UR quattro 10v Turbo |