Flowtech Headers are the perfect combination of quality and value. These "4 to 1" LS Turbo headers available in 1-3/4" and 1-7/8" tube diameters are an ideal design creating a compact package allowing a variety of configurations (Up and Forward, Down and Forward, or Down and Back) to be used as a universal fit Turbo header.
Specifications:
- Header style: Shorty
- Primary tube diameter: 1-7/8 in
- Collector diameter: 3.00 in
- Material: Stainless Steel
- Finish: Natural
- Engine: GM
- Mounting hardware and gaskets included
- CARB (California) emissions compliant: No
- Part number: 11537FLT
FAQ
What does the Flowtech 11537FLT header fit?
It is a universal GM header sized 1-7/8in x 3.00in. Confirm clearance and primary tube/collector size for your chassis and engine before ordering.
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?
Natural.

