Flowtech - 11551FLT
Flowtech Upright Headers
Upright Headers; 2.25 in. Primary Tubing; 4 in. Collector; 409 Stainless Steel; Natural Finish;
Flowtech Headers are the perfect combination of quality and value. These Big Block Chevy Upright headers available in 2-1/4 in. tube diameters are ideal for even big cubic in. Big Block Chevy engines
- 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
- Center of exhaust port to end of collector length is 33-1/2"
Application: Big Block Chevy
Bolt size: 3/8-16 x 3/4
Brand: Flowtech Exhaust
CARB (California) Compliant: No
Category: Exhaust
Collector Attachment: Weld-On
Collector Diameter: 4.00
Collector Port Diameter: 2.25
Color: Silver
Design: Upright
EGT Port: No
Emission Code: 4
Engine: GM Big Block
Finish: Natural
Flange Thickness: 0.4375
Flange Thickness: 7/16"
Gasket Or Seal Included: Yes
Grade Type: Performance
Header Finish: Natural
Header Style: Upright
Material: 409 Stainless Steel
Mounting Hardware Included: No
Oxygen Sensor Port: No
part type: Exhaust Header
Port Shape: Round
Primary Tube Dia.: 2-1/4 inch
Primary Tubing Diameter: 2-1/4
Primary Tubing Diameter: 2.250
Product Type: Headers
Sheen Level: Semi-Gloss
Sub Category: Exhaust Manifolds
Tube Material: 409 Stainless Steel
Tube Wall Thickness: 16
Warning: California Proposition 65
