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.
Features:
- 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
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
| Make |
Model |
Submodel |
Years |
Fitment Notes |
| Ford |
Mustang |
Base |
1979 - 2004 |
LS Swap |
| Ford |
Mustang |
Cobra |
1981 - 1997 |
LS Swap |
| Ford |
Mustang |
Equipado |
1998 - 2003 |
LS Swap |
| Ford |
Mustang |
GLX |
1982 - 1983 |
LS Swap |
| Ford |
Mustang |
GL |
1982 - 1983 |
LS Swap |
| Ford |
Mustang |
GT Base |
2004 |
LS Swap |
| Ford |
Mustang |
GT Bullitt |
2001 |
LS Swap |
| Ford |
Mustang |
GT Equipado |
2004 |
LS Swap |
| Ford |
Mustang |
GT-350 20th Anniversary |
1984 |
LS Swap |
| Ford |
Mustang |
GTS |
1995 |
LS Swap |
| Ford |
Mustang |
GT |
1982 - 2004 |
LS Swap |
| Ford |
Mustang |
Ghia |
1979 - 1982 |
LS Swap |
| Ford |
Mustang |
High |
1996 - 1997 |
LS Swap |
| Ford |
Mustang |
LX |
1984 - 1993 |
LS Swap |
| Ford |
Mustang |
L |
1982 - 1984 |
LS Swap |
| Ford |
Mustang |
Mach 1 |
2003 - 2004 |
LS Swap |
| Ford |
Mustang |
SVO |
1984 - 1986 |
LS Swap |
| Ford |
Mustang |
SVT Cobra 10th Anniversary |
2003 |
LS Swap |
| Ford |
Mustang |
SVT Cobra R |
1993 - 2000 |
LS Swap |
| Ford |
Mustang |
SVT Cobra |
1993 - 2004 |
LS Swap |
| Ford |
Mustang |
Semi-Equipado |
1998 |
LS Swap |
| Ford |
Mustang |
Turbo GT |
1983 |
LS Swap |
