Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat resistant black paint for a stealthy appearance.
Specifications:
- Header style: Long Tube
- Primary tube diameter: 1-1/2 in
- Collector diameter: 3.00 in
- Flange: 3-bolt
- Material: Mild Steel
- Finish: Black Paint
- Engine: Ford
- Mounting hardware and gaskets included
- CARB (California) emissions compliant: No
- Part number: 12100FLT
Vehicle Applications:
- 1966-1970 Ford Fairlane 500
- 1966-1967 Ford Fairlane 500XL
- 1966-1969 Ford Fairlane
- 1966-1970 Ford Falcon
- 1966-1970 Ford Falcon Futura
- 1972-1973 Ford Gran Torino
- 1972-1973 Ford Gran Torino Sport
- 1972-1973 Ford Gran Torino Squire
- 1971-1973 Ford Maverick
- 1966-1973 Ford Mustang
- 1969-1971 Ford Mustang Boss 302
- 1971-1972 Ford Mustang Boss 351
- 1970-1973 Ford Mustang Grande
- 1970-1973 Ford Mustang Mach 1
- 1966-1970 Ford Mustang Shelby GT-350
- 1966 Ford Mustang Shelby GT-350H
- 1967-1973 Ford Ranchero 500
- 1967 Ford Ranchero 500 XL
- 1966-1971 Ford Ranchero
- 1968-1973 Ford Ranchero GT
- 1970-1973 Ford Ranchero Squire
- 1971 Ford Torino 500
- 1968-1973 Ford Torino
- 1971 Ford Torino Cobra
- 1968-1971 Ford Torino GT
- 1969-1971 Ford Torino Squire
- 1966-1973 Mercury Comet
- 1967-1973 Mercury Cougar
- 1969-1970 Mercury Cougar Boss 302
- 1967-1973 Mercury Cougar XR-7
- 1966-1971 Mercury Cyclone
- 1969 Mercury Cyclone CJ
- 1970-1971 Mercury Cyclone GT
- 1969-1971 Mercury Cyclone Spoiler
- 1968-1973 Mercury Montego
- 1972-1973 Mercury Montego GT
- 1968-1973 Mercury Montego MX
- 1970-1973 Mercury Montego Villager
Grouped by model; fits 157 individual year/make/model configurations in total.
FAQ
What vehicles does the Flowtech 12100FLT header fit?
It fits 1966 Ford Fairlane 500; 1967 Ford Fairlane 500; 1968 Ford Fairlane 500; 1969 Ford Fairlane 500; 1970 Ford Fairlane 500; 1966 Ford Fairlane 500XL; and 151 more configurations. See the Vehicle Applications list for the full fitment.
Are mounting hardware and gaskets included?
Yes. Flowtech supplies the mounting hardware and header gaskets for installation.
Is this header legal in California?
Flowtech lists this part as not CARB (California) emissions compliant. Confirm your local emissions requirements before purchase.
What finish is this header?
Black Paint.

