Description:
The intake valves in your vehicle allow the intake port to be sealed during the combustion process, so that the engine can run at top efficiency.
Fitment:
| Audi | B5 A4 | FWD | 1.8T |
| Audi | B5 A4 | Quattro | 1.8T |
| Audi | B5 A4 | FWD | V6 30v |
| Audi | B5 A4 | Quattro | V6 30v |
| Audi | B5 S4 | All | 2.7T |
| Audi | B6 A4 | FWD | 1.8T |
| Audi | B6 A4 | Quattro | 1.8T |
| Audi | B6 A4 | FWD | V6 30v |
| Audi | B6 A4 | Quattro | V6 30v |
| Audi | C5 A6 | Quattro | 2.7T |
| Audi | C5 A6 | FWD | V6 2.8L |
| Audi | C5 A6 | Quattro | V6 2.8L |
| Audi | C5 A6 | FWD | V6 3.0L |
| Audi | C5 A6 | Quattro | V6 3.0L |
| Audi | C5 A6 | All | V6 30v |
| Audi | C5 Allroad | Quattro | 2.7T |
| Audi | TT MKI | FWD | 180HP |
| Audi | TT MKI | Quattro | 180HP |
| Audi | TT MKI | Quattro | 225HP |
| Volkswagen | 337/20AE | All | 1.8T |
| Volkswagen | Golf IV | All | 1.8T |
| Volkswagen | Jetta IV | All | 1.8T |
| Volkswagen | Jetta IV GLI | All | 1.8T |
| Volkswagen | New Beetle | All | 1.8T |
| Volkswagen | Passat B5 | 4 Motion | 1.8T |
| Volkswagen | Passat B5 | FWD | 1.8T |
| Volkswagen | Passat B5 | 4 Motion | V6 30v |
| Volkswagen | Passat B5 | FWD | V6 30v |