Flowtech 11586FLT Upright Derby Style Headers for GM 2.8L, 3.1L, 3.4L V6 Engines
387-11586FLT
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GM V6
These upright derby style headers are designed to improve exhaust flow and engine breathing on GM 2.8L, 3.1L, and 3.4L V6 engines. Mandrel-bent primary tubes maintain consistent tubing diameter to promote smooth exhaust pulse flow and enhanced cylinder scavenging. Constructed from heavy-duty 16-gauge 409 stainless steel, these headers deliver increased durability while supporting performance-driven exhaust efficiency.
Flowtech 11586FLT Features:
- Mandrel-bent primary tubes for consistent exhaust flow
- Improves exhaust scavenging and engine breathing
- Upright derby style header design
- Compatible with round and D-port exhaust ports
- Constructed from heavy-duty 16-gauge 409 stainless steel
- 1-5/8 in. primary tube diameter
- 20 in. long primary tubes
- 10 in. long 2.5 in. collector
- 3/8 in. thick header flange for strength and leak-free sealing
- Fits GM 2.8L, 3.1L, and 3.4L V6 engines
Flowtech 11586FLT Includes:
- Upright derby style headers
- Header gaskets
Flowtech 11586FLT Notes:
- Collector attachment is weld-on
- Oxygen sensor ports not included
- Mounting hardware not included
- Not CARB compliant
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Specifications:
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.