Multi-fit - 2.25 in. Outlet
These Flowtech cast iron exhaust manifolds have a 2.25-inch outlet, natural cast finish, and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications at a budget-friendly price. Being cast iron means they will provide years of leak-free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance.
These Flowtech cast iron exhaust manifolds have a 2.25-inch outlet, natural cast finish, and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications at a budget-friendly price. Being cast iron means they will provide years of leak-free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance.
- Intended for GM LS engine swap applications where durability and leak-free sealing is desired at a budget-oriented price
- Nickel plated steel mating flanges included (mating flange fasteners are not included)
- 2.25 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
- 2 bolt exit flange configuration matches the E-rod exhaust manifolds for a factory like fitment. This allows the use of factory gaskets and fasteners if desired, for an original quality seal and fitment
- Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
- Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
- Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance
Application Summary:
| Year | Make/Model |
|---|---|
| 1965-1967 | Buick Gran Sport |
| 1970-1972 | Buick GS |
| 1968-1969 | Buick GS 350 |
| 1968-1969 | Buick GS 400 |
| 1970-1972 | Buick GS 455 |
| 1978-1988 | Buick Regal |
| 1964-1972 | Buick Skylark |
| 1964-1969 | Buick Special |
| 1964-1972 | Buick Sportwagon |
| 1973-1974 | Chevrolet Blazer |
| 1975-1986 | Chevrolet C10 |
| 1963-1974 | Chevrolet C10 Pickup |
| 1967-1972 | Chevrolet C20 Pickup |
| 1970-1981 | Chevrolet Camaro |
| 1964-1972 | Chevrolet Chevelle |
| 1964-1972 | Chevrolet El Camino |
| 1978-1987 | Chevrolet El Camino |
| 1975-1986 | Chevrolet K10 |
| 1973-1974 | Chevrolet K10 Pickup |
| 1975-1982 | Chevrolet K5 Blazer |
| 1975 | Chevrolet Malibu |
| 1978-1983 | Chevrolet Malibu |
| 1978-1988 | Chevrolet Monte Carlo |
| 1987 | Chevrolet V10 |
| 1979-2004 | Ford Mustang |
| 1967-1972 | GMC C15/C1500 Pickup |
| 1967-1972 | GMC C25/C2500 Pickup |
| 1978-1987 | GMC Caballero |
| 1973-1982 | GMC Jimmy |
| 1975-1978 | GMC K15 |
| 1973-1974 | GMC K15/K1500 Pickup |
| 1971-1972 | GMC Sprint |
| 1987 | GMC V1500 |
| 1976-1987 | Jeep CJ7 |
| 1987-1995 | Jeep Wrangler |
| 1964-1971 | Oldsmobile 442 |
| 1964-1972 | Oldsmobile Cutlass |
| 1978-1981 | Oldsmobile Cutlass |
| 1985-1987 | Oldsmobile Cutlass |
| 1978-1984 | Oldsmobile Cutlass Calais |
| 1988 | Oldsmobile Cutlass Calais |
| 1982-1988 | Oldsmobile Cutlass Ciera |
| 1980-1983 | Oldsmobile Cutlass Cruiser |
| 1987-1988 | Oldsmobile Cutlass Cruiser |
| 1978-1980 | Oldsmobile Cutlass Salon |
| 1985-1987 | Oldsmobile Cutlass Salon |
| 1968-1972 | Oldsmobile Cutlass Supreme |
| 1978-1988 | Oldsmobile Cutlass Supreme |
| 1964-1972 | Oldsmobile F85 |
| 1964-1972 | Oldsmobile Vista Cruiser |
| 1968-1971 | Pontiac Acadian |
| 1964-1967 | Pontiac Beaumont |
| 1978-1988 | Pontiac Bonneville |
| 1970-1981 | Pontiac Firebird |
| 1978-1988 | Pontiac Grand Prix |
| 1964-1972 | Pontiac GTO |
| 1968-1972 | Pontiac LeMans |
| 1978-1981 | Pontiac LeMans |
| 1988 | Pontiac LeMans |
| 1964-1970 | Pontiac Tempest |
| Attributes | |
| Application | Multi-fit |
| Bolt size | M8 x 1.25 x 25mm |
| Brand | Flowtech Exhaust |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Category | Exhaust |
| Choose Your Part | Manifold, Manifold |
| Collector Diameter | 2.25 inch, 2.25 |
| Collector Port Diameter | 2.50 |
| Color | Black |
| Country of Origin (Primary) | CN |
| Design | Manifold |
| Emission Code | 8, 8 |
| Engine | GM Gen III/IV (LS), GM Gen III/IV (LS) |
| Exhaust Manifold Style | Standard Swap, Standard Swap |
| Finish | Natural, Natural |
| Gasket Or Seal Included | Yes |
| Grade Type | Performance |
| Harmonized Tariff Code (Schedule B) | 8409915085 |
| Hazardous Material Code | N |
| Header Style | Manifold, Manifold |
| Heat Shield Included | No |
| Life Cycle Status Code | Available to Order |
| Main Piping Diameter | 1-3/4, 1.75 |
| Material | Cast Iron, Cast Iron |
| Mounting Hardware Included | Yes, Yes |
| Mounting Hole Quantity | 6, 6 |
| NAFTA Preference Criterion Code | B |
| Oxygen Sensor Port | No, No |
| Part Type | Exhaust Manifold, Exhaust Manifold |
| Port Shape | Round, Round |
| Primary Tube Dia. | 1-3/4 inch, 1-3/4 inch |
| Primary Tubing Diameter | 1-3/4, 1.750 |
| Product Type | Manifold, Manifold |
| Sale Category | Exhaust |
| SDR Required Flag | N |
| Sub Category | Exhaust Manifolds, Exhaust Manifolds |
| Subframe | Stock, Stock |
| Tube Material | Cast Iron, Cast Iron |
| Type of Component | Manifold, Manifold |
| Warning | California Proposition 65, California Proposition 65 |
| Warranty Time | 90 |
| GTIN | 00090127074053 |