Flowtech Upright Headers
Big Block Chevy 2-1/4" Upright Headers with 4" Collector- Natural Finish
$308.95 Your Price
Starting at $28 a month with Learn More
- CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
- Heavy duty 16-gauge 409SS tubing for increased strength and durability
- 2-1/4” tubing diameter for increased exhaust flow increasing performance and improved throttle response
- Extended 4” collector for maximum strength and exhaust flow
- Extra thick 7/16” header flange for a leak-free seal and maximum strength
- Welded-in collector merge spears to control exhaust gas re-entry into primary tubes
|Application||Big Block Chevy|
|Collector Diameter||4 inch|
|Primary Tube Dia.||2-1/4 inch|
|Tube Material||409 Stainless Steel|
This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
- 1965 and older U.S. manufactured California Certified vehicles
- 1967 and older U.S. manufactured Federally Certified vehicles
- 1967 and older Foreign manufactured vehicle
Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.
*Free Shipping & Handling only offered to the contiguous US on orders over $100.
Some parts are not legal for use in California or other states with similar regulations.