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2003 GMC Sierra 1500
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Guaranteed to Fit2003 GMC Sierra 1500 Change Vehicle

Flowtech®
2003 GMC Sierra 1500 - Shorty Headers

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$413.95
$517.95Save: $104.00(20%)
Manufacturer #91843FLT
Guaranteed to Fit2003 GMC Sierra 1500 Change Vehicle
Qty:
1

Your Vehicle Fit Details

Vehicle Name
Submodel
Engine
Fitment Information
2003 GMC Sierra 1500
SLT
8 Cyl 4.8L
-
2003 GMC Sierra 1500
Base
8 Cyl 5.3L
-
2003 GMC Sierra 1500
WT
8 Cyl 4.8L
-
2003 GMC Sierra 1500
SLE
8 Cyl 5.3L
-
2003 GMC Sierra 1500
WT
8 Cyl 5.3L
-
2003 GMC Sierra 1500
SL
8 Cyl 4.8L
-
2003 GMC Sierra 1500
Base
8 Cyl 4.8L
-
2003 GMC Sierra 1500
SLT
8 Cyl 5.3L
-
2003 GMC Sierra 1500
SL
8 Cyl 5.3L
-
2003 GMC Sierra 1500
SLE
8 Cyl 4.8L
-

Highlights

Part:
Headers
Brand:
Flowtech
Emissions:
46-State Legal (Cannot ship to CA, CO, NY or ME)
Series:
Shorty Series
Header Style:
Shorty
Primary Tube Diameter:
1 5/8 in. Primary Tube
Color Finish:
Painted Black
Collector Diameter:
2 1/2 in. Collector
Quantity Sold:
Kit
Warranty:
90-day Flowtech warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Collector Attachment Style:
Flanged
Design:
4-1
Head Flange Thickness:
3/8 in. Thick Head Flange
Includes:
With Gaskets and Bolts/Studs
Material:
Made of Steel
Port Shape:
Round Port
Primary Tube Gauge:
16 Gauge

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
2002 GMC Sierra 1500
HT
8 Cyl 5.3L
-
2002 GMC Sierra 1500
HT
8 Cyl 4.8L
-
2002-2003 Chevrolet Avalanche 1500
North Face
8 Cyl 5.3L
-
2002-2003 Chevrolet Avalanche 1500
On Road Edition
8 Cyl 5.3L
-
2002-2003 GMC Sierra 1500
SL
8 Cyl 5.3L
-
Page 1 of 12 | Showing 1 - 5 of 56 results

Product Information

FLOWTECH – SHORTY HEADERS

Get maximum ground clearance along with Flowtech performance with these cold-rolled steel Shorty headers. They feature port seals that are O-ringed to prevent leaks and are designed to fit without hassles for performance that will last for miles. You can improve the power and sound on your street machine with Flowtech’s wide range of performance exhaust products.

  • Short tubes for maximum clearance
  • Made from cold-rolled steel tubing
  • Includes mounting hardware
  • Port seals are O-ringed to prevent leaking
  • Features free-flowing Power Plenum collectors
  • Tested for leaks
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

0
Will these bolt to the stock pipes?Dylan H.Sep 07, 2023
Best Answer:Hi Dylan, I'm glad to assist you. Yes, these are direct bolt-ons with no modifications required. If you're interested in this set of headers, you can click on the link below for direct ordering to take advantage of our ongoing discount and limited stocks. I hope this helps, and happy shopping. <a href="https://www.carparts.com/headers/flowtech/f3191843flt?can=CPAE1047_CSQA_20230906" target="_blank">https://www.carparts.com/headers/flowtech/f3191843flt?can=CPAE1047_CSQA_20230906</a>
Arnel E.STAFFSep 07, 2023
0
Do these fit 4x4 models?SdegroffSep 17, 2021
Best Answer:Hi Shawn, I'm glad to assist you. Yes. These are compatible with the 4WD models. I hope this helps, and if you're interested in these headers, you can click on the link below for direct ordering to take advantage of our ongoing sale and limited stocks. Happy shopping. <a href="https://www.carparts.com/headers/flowtech/f3191843flt?can=CPAE1047" target="_blank">https://www.carparts.com/headers/flowtech/f3191843flt?can=CPAE1047</a>
Arnel E.STAFFSep 17, 2021