Description
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:
| Application | Race Car |
| Collector Tube Size | 2.500 in. |
| Description_ASC | Holley Performance Emission Code 4: This part is legal for sale or use on Racing Use Only Vehicles. The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle |
| Description_DEF | Exhaust Header |
| Description_DES | Upright Headers |
| Description_EXT | Upright Headers; Fits w/2.8L/3.1L/3.4L GM V6 Engines; 1.5 in. Primary Tubes; 2.5 in. Collector; 10 in.; Round Port; |
| Description_FAB | 3/8 in. Thick Header Flange For A Leakfree Seal |
| Description_FAB | Better Exhaust Pulse Flow And Improved Performance |
| Description_FAB | Header Gaskets Included |
| Description_FAB | Heavy Duty 16-Gauge 409 Stainless Steel For Strength/Durability |
| Description_FAB | Increased Exhaust Flow And Improved Throttle Response |
| Description_INV | GM 2.8-3.4L V6 UPRIGHT HEADERS 1.5 IN |
| Description_LAB | Proposition 65 |
| Description_MKT | 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. |
| Description_SHO | Exhaust Header |
| Flange Length | 0.375 in. |
| height | 10.7 |
| length | 31.1 |
| LTL | N |
| Material | 409 Stainless Steel |
| Port Shape | Round |
| Tube Diameter | 1.500 in. |
| WARNING CA Proposition 65 | Yes |
| WARNING CA Proposition 65 Message | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
| weight | 16.5 |
| width | 13.4 |
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