Flowtech® (02-13) GM SUV/Truck 1-5/8" Ceramic Mild Steel Shorty Headers

  • Sale
  • Regular price $490.95


2002 - 2013 Chevy Avalanche (5.3L)

2002 - 2013 Chevy Silverado (4.8L/5.3L)

2002 - 2013 GMC Sierra (4.8L/5.3L)

2002 - 2013 Chevy Suburban (5.3L)

2002 - 2006 Chevy Tahoe (4.8L/5.3L)


Installs to factory Y-Pipe and accommodates all emission control devices.
This part is legal for sale and use on Emissions Controlled Vehicles, in all 50 states, when used in accordance with the manufacturers application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number.
The following vehicles are considered Emissions Controlled Vehicles:
  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Flowtech Headers are the perfect combination of quality and value. These shorty, emission compatible headers fit the popular 02-13 Chevy Silverado/Tahoe/Avalanche/Suburban and GMC Sierra V-8 4.8L/5.3L, 2WD/4WD.


  • Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increased exhaust velocity
  • Heavy duty 16-gauge tubing for increased strength and durability
  • Smooth transition, 1-5/8” diameter primary tubes are used for increased exhaust flow increasing performance and improving throttle response
  • OE style 2-1/2” ball and socket collector connects to factory exhaust head pipe with no cutting or welding
  • TIG-welded, machined 3/8” header flange for a leak-free seal and maximum strength
  • Premium aluminum header gaskets included
  • Coated in a satin silver metallic ceramic thermal barrier coating for an aggressive look and reduced underhood temperatures
  • Headers are a must if you are using a cold air intake, cat-back exhaust system or tuner
  • C.A.R.B. EO# D-115-20

Brand Flowtech
C.A.R.B. EO # D-115-20
CARB (California) Compliant Yes
CARB EO# D-115-20
Collector Diameter 2.50 inch
Emission Code 1
Engine GM LS
Header Finish Silver Ceramic
Header Style Shorty
Primary Tube Dia. 1-5/8 inch
Product Type Headers
Tube Material Mild Steel
Part Number 91843-1FLT

Install Guide: