Maintain a factory original appearance, while adding a performance upgrade with these new exhaust manifolds. The increased performance and improved exhaust flow are a result of countless hours of testing and modifying the design of W-30/455 manifolds for small-block use. These manifolds feature a divided center port design as well as a large 2-1/4” outlet on each side. The smooth passenger’s side casting eliminates the need to plug the crossover pipe boss. Manifolds are sold as a pair and ready for direct bolt-on installation.
| Make | Model | Submodel | Years | Fitment Notes |
| Oldsmobile | Cutlass | 442 | 1975 - 1977 | V8, 5.7L/350, OLDSMOBILE V8, RWD, AUTOMATIC, DRIVER SIDE V8, 5.7L/350, OLDSMOBILE V8, RWD, AUTOMATIC, PASSENGER SIDE V8, 5.7L/350, OLDSMOBILE V8, RWD, MANUAL, DRIVER SIDE V8, 5.7L/350, OLDSMOBILE V8, RWD, MANUAL, PASSENGER SIDE |
| Oldsmobile | Cutlass | Base | 1968 - 1975 | V8, 5.7L/350, OLDSMOBILE V8, RWD, AUTOMATIC, DRIVER SIDE V8, 5.7L/350, OLDSMOBILE V8, RWD, AUTOMATIC, PASSENGER SIDE V8, 5.7L/350, OLDSMOBILE V8, RWD, MANUAL, DRIVER SIDE V8, 5.7L/350, OLDSMOBILE V8, RWD, MANUAL, PASSENGER SIDE |
| Oldsmobile | Cutlass | Colonnade | 1977 | V8, 5.7L/350, OLDSMOBILE V8, RWD, AUTOMATIC, DRIVER SIDE V8, 5.7L/350, OLDSMOBILE V8, RWD, AUTOMATIC, PASSENGER SIDE V8, 5.7L/350, OLDSMOBILE V8, RWD, MANUAL, DRIVER SIDE V8, 5.7L/350, OLDSMOBILE V8, RWD, MANUAL, PASSENGER SIDE |
