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FlowTech Afterburner Headers, Painted 49150FLT

FlowTech Afterburner Headers, Painted 49150FLT
$353.99 ea
NEWARRIVING SOONEstimated Ship Date 08/27/2025 (If Ordered Today)39 Available from HOLLEY PERFORMANCE PRODUCTS as of 08/08/2025
Model: 4006161
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 1
STORE PICKUP
[More Info]
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” 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
Do not fit angle plug heads. Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Please call Flowtech tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.
Installation Notes:
Do not fit angle plug heads. Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Please call Flowtech tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.

Downloads:

Download Name File Size
49150-3901fltrev.pdf290.65KB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine Fitment Notes
Chevrolet Blazer 1973 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
Chevrolet Blazer 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
Chevrolet C10 Pickup 1973 5.0L / 307 / V8
5.7L / 350 / V8		 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
Chevrolet C10 Pickup 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
Chevrolet C10 Suburban 1973 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
Chevrolet C10 Suburban 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
Chevrolet C20 Pickup 1973 5.7L / 350 / V8
5.0L / 307 / V8		 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
Chevrolet C20 Pickup 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
Chevrolet C20 Suburban 1973 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
Chevrolet C20 Suburban 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
Chevrolet C30 Pickup 1973 5.0L / 307 / V8
5.7L / 350 / V8		 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
Chevrolet C30 Pickup 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC C15/C1500 Pickup 1973 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC C15/C1500 Pickup 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC C15/C1500 Suburban 1973 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC C15/C1500 Suburban 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC C25/C2500 Pickup 1973 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC C25/C2500 Pickup 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC C25/C2500 Suburban 1973 5.0L / 307 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC C25/C2500 Suburban 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC C35/C3500 Pickup 1973 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC C35/C3500 Pickup 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC Jimmy 1973 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;
GMC Jimmy 1974 5.7L / 350 / V8 Afterburnerâ„¢; Headers; Standard; w/o A.I.R. Tubes; Modify Stock Exh. To Retain Cat. Converter; Not Legal For Street Use;

Specifications:

Bolt Size 3/8-16 x 3/4, 3/8-16 x 3/4
CARB (California) Compliant No
Collector Diameter 3.00 inch
Emission Code 4
Engine Chevrolet Small Block Gen I
Header Finish Black Paint
Header Style Long Tube
Part Type Exhaust Header
Primary Tube Dia. 1-5/8 inch
Product Type Headers
Proposition 65 www.P65Warnings.ca.gov
Tube Material Mild Steel

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