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Vehicle Info NeededFLOWTECHPART NUMBER: 387-91834
Shorty Headers 1999-2002 Chevy GMC Pickup SUV 4.8L 5.3L 50-State Legal
$29799
Ships on 09/14/2026
Lowest Price GuaranteeChevy/GMCPainted Black
- Shorty Headers
- 1999-2002 Chevy / GMC Silverado / Sierra
- 4.8L / 5.3L (With EGR, Without A.I.R. Injection)
- 1-5/8" Primary Tube
- Mild Steel
- High-Temp Black Paint Finish
- C.A.R.B. EO #D-115-161999-2002 Chevy/GMC Silverado/Sierra: 4.8L/5.3L, Tube Size 1.625" O.D., w/o A.I.R. w/EGR; Black Paint; 50-State Legal header C.A.R.B. EO #D-115-16.
Features:
- This is a 50-State Legal header C.A.R.B. EO #D-115-16.
- Sturdy 16 gauge tubing
- Extra thick 3/8” flanges for a leak-free seal
- Designed as a direct fit replacement for OEM exhaust manifolds
- Will accommodate all emission control devices
- Bolts directly to factory head pipe
- Complete with premium gaskets and hardware
Emissions Note:
This part is legal for sale and use on Emissions Controlled Vehicles, in all 50 states, when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number D-115-16.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Make Your Truck or SUV Breathe Better with Flowtech Headers
Flowtech Shorty Truck and SUV Headers connect to the factory or OE-style exhaust, instantly supplying more power and better fuel economy. These mandrel-bent, 16-gauge steel tube headers with extra-thick 3/8 inch exhaust flanges provide a dependable leak-free seal, connect to all factory emissions equipment, and include necessary hardware and gaskets for installation.
Part TypeHeader
Product LineFlowtech Shorty Truck & SUV Headers
BrandFLOWTECH
Package Height11.3
Package Width15.8
Package Length23.3
Weight17.2 PG
Part CategoryPerformance Parts
Carb Eo NumberD-115-16 (pdf)
Header FinishPainted
Tube DirectionDown Swept
QuantitySold as a pair
Bolts/Studs IncludedYes
Transmission Mount IncludedNo
Header MaterialSteel
Gaskets IncludedYes
Weld-UpNo
Collector AttachmentStock flange
Flange StyleStandard
TunedNo
Motor Mounts IncludedNo
Part FitmentSemi Universal
Reducers IncludedNo
ApplicationAutomotive
Primary Tube Gauge16-gauge
Header StyleShorty
Cross Over Pipe IncludedNo
Catalytic Converter(S) IncludedNo
Primary Tube Diameter1.625 in (41.3 mm)
Vendor Part Number91834FLT
Package Qty1
Package TypeEA
No Questions
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