Description

Flowtech Upright Headers These Flowtech upright derby style headers fit the 2.8L, 3.1L and 3.4L GM V6 engines with both round port or D-port style exhaust ports. 1-1/2 in. and 1-5/8 in. mandrel bent primary tubes provide consistent tubing diameters for smooth flow of the exhaust pulses and increase the cylinder scavenging of the exhaust to improve engine breathing. The headers are constructed from heavy duty 16-gauge 409 stainless steel tubing for increased strength and durability. These headers use a 10 in. long, 2.5 in. collector with 20 in. long primary tubes. The 3/8 in. thick header flange provides a leak-free seal and maximizes strength.

• Specifications

  • Installed Height: 27.00"
  • Collector Length: 10.00"
  • Warning:California Proposition 65
  • Emission Code: 4
  • Collector Port Diameter: 2.50"
  • Finish: Natural
  • Inlet Port Shape: Round
  • Port Shape:Round
  • Tube Material:409 Stainless Steel
  • Flange Thickness: 0.3750"
  • Tube Wall Thickness:16 GU
  • Primary Tube Dia.:1-5/8 inch
  • EGT Port: No
  • Header Finish: Natural
  • Collector Diameter: 2.50"
  • Primary Tubing Diameter:1-5/8 IN
  • Engine: GM 90 Degree V6
  • Design: Upright
  • Grade Type: Performance
  • California Proposition 65 Required: Yes
  • Mounting Hardware Included: No
  • Header Style: Upright
  • CARB (California) Compliant: No
  • Sheen Level:Satin
  • Collector Attachment: Weld-On
  • Primary Tubing Diameter:1.625 IN
  • Category: Exhaust
  • Gasket Or Seal Included: Yes
  • Oxygen Sensor Port:No
  • Primary Tube Length:20 inch IN
  • Flange Thickness: 3/8""
  • Color: Silver
  • Material: 409 Stainless Steel