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

Flowtech®
2003 Chevrolet Avalanche 1500 - Shorty Headers

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$547.95
$683.95Save: $136.00(20%)
Manufacturer #91843-1FLT
Guaranteed to Fit2003 Chevrolet Avalanche 1500 Change Vehicle
Qty:
1

Your Vehicle Fit Details

Vehicle Name
Submodel
Engine
Fitment Information
2003 Chevrolet Avalanche 1500
On Road Edition
8 Cyl 5.3L
1.625 in. Primary Tubing
2003 Chevrolet Avalanche 1500
Z71
8 Cyl 5.3L
1.625 in. Primary Tubing
2003 Chevrolet Avalanche 1500
WBH
8 Cyl 5.3L
1.625 in. Primary Tubing
2003 Chevrolet Avalanche 1500
Base
8 Cyl 5.3L
1.625 in. Primary Tubing
2003 Chevrolet Avalanche 1500
North Face
8 Cyl 5.3L
1.625 in. Primary Tubing

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:
Ceramic Coated
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
Fitnotes:
1.625 in. Primary Tubing

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
2002 GMC Sierra 1500
HT
8 Cyl 4.8L
4WD, Not Legal For Sale Or Use In California
2002 GMC Sierra 1500
HT
8 Cyl 5.3L
GAS, RWD, Not Legal For Sale Or Use In California
2002-2003 Chevrolet Avalanche 1500
North Face
8 Cyl 5.3L
1.625 in. Primary Tubing
2002-2003 Chevrolet Avalanche 1500
On Road Edition
8 Cyl 5.3L
1.625 in. Primary Tubing
2002-2003 GMC Sierra 1500
SL
8 Cyl 4.8L
4WD, Not Legal For Sale Or Use In California
Page 1 of 13 | Showing 1 - 5 of 63 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
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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
Hi, I have a 2005 Tahoe Z71 5.3L 4WD. I was wondering if these would be a direct fit installation?Zach V.Aug 20, 2023
Best Answer:Hi Zach, thank you for reaching out. Yes. This item fits the 2005 Chevrolet Tahoe Z71. You can use this link to continue ordering this part at a discounted price today: <a href="https://www.carparts.com/headers/flowtech/f31918431flt?can=CPAP3648_CSQA_20230820" target="_blank">https://www.carparts.com/headers/flowtech/f31918431flt?can=CPAP3648_CSQA_20230820</a> I hope this helps. Happy shopping.
Aldrin P.STAFFAug 20, 2023
0
Will these install into my stock system with little to no issues?William P.Jun 02, 2023
Best Answer:Hi William, I'm glad to assist you. For us to double-check carefully and be accurate on the part you need, please provide the complete details of your vehicle (year, make, model, submodel, drivetrain 2WD/4WD, and engine size). The VIN would be much helpful.
Jeonino E.STAFFJun 02, 2023