Flowtech
OBS HDR 75-91 CHEVY/GMC TRK 2WD
SKU: F00M 43011FLT
Description
Part #: 43011FLT
FLOWTECH's Afterburner Turbo Chamber Headers represent the first new major design change in exhaust technology in decades. This designs combines the race-proven 4 into 1 design with the torque managing capabilities of a Tri-Y header. The turbo chamber helps smooth out exhaust turbulence for increased performance and a broad power curve.
Features:
- Horsepower and Torque increased over conventional header design
- Big 3-inch secondary collector for reduced back pressure
- Tuned-length primary tubes combine with Velocity Tube to smooth out exhaust pulses
- Patented Velocity Tube increases cylinder scavenging
- All hardware and premium gaskets included for a complete installation
1975-1987 Chevy/GMC Pick-Up 1/2, 3/4, 1-Ton, 2WD, 1975-1991 Blazer/Jimmy/Suburban 2WD, 1988-1991 Chevy/GMC 1 Ton Crew Cab, 2WD: 283-400, Tube Size 1.625", Collector Size 3"
Fitment
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Specifications
| Brand | Flowtech |
| Part Number | F00M 43011FLT |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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