{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
Guaranteed to Fit2003 Chevrolet Avalanche 1500 Change Vehicle

Kooks®
2003 Chevrolet Avalanche 1500 - Long Tube Headers

Tap image and pinch to zoom.
$3,438.99
Manufacturer #2851H420
Guaranteed to Fit2003 Chevrolet Avalanche 1500 Change Vehicle
Qty:
1

Your Vehicle Fit Details

Vehicle Name
Submodel
Engine
Fitment Information
2003 Chevrolet Avalanche 1500
All Submodels
All Engines
With Catted Connection Kit, Intended For Race Use Only

Highlights

Part:
Brand:
Emissions:
46-State Legal (Cannot ship to CA, CO, NY or ME)
Header Style:
Long Tube
Primary Tube Diameter:
1.88 in. Primary Tube
Color Finish:
Natural
Quantity Sold:
Kit
Warranty:
Lifetime Kooks limited 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.

Material:
Made of Stainless Steel
Product Fit:
Direct Fit
Fitnotes:
With Catted Connection Kit, Intended For Race Use Only

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1999-2003 GMC Sierra 1500
SL
8 Cyl 5.3L
With Catted Connection Kit, Intended For Race Use Only
1999-2003 GMC Sierra 1500
SL
8 Cyl 4.8L
With Catted Connection Kit, Intended For Race Use Only
1999-2004 GMC Sierra 1500
SLT
8 Cyl 4.8L
With Catted Connection Kit, Intended For Race Use Only
1999-2005 Chevrolet Silverado 1500
Base
8 Cyl 4.8L
With Catted Connection Kit, Intended For Race Use Only
1999-2005 Chevrolet Silverado 1500
Base
8 Cyl 5.3L
With Catted Connection Kit, Intended For Race Use Only
Page 1 of 10 | Showing 1 - 5 of 50 results

Product Information

KOOKS LONG TUBE HEADERS

Backed by a renowned manufacturer with over 50 years of race-winning experience, Kooks' long tube headers are crafted with smooth-flowing stainless steel tubing to unleash your ride's power potential. Since 1962, Kooks has been designing and manufacturing race-winning headers and performance exhaust parts for race teams and street performance enthusiasts.

  • Made from race-winning experience
  • Crafted with premium-quality stainless steel
  • Applications for a wide range of vehicles
  • Cannot be used on licensed vehicles in California, not CARB legal
  • O2 sensor extensions, gaskets and/or installation hardware are included for some applications
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
This just the headers? This comes with the down pipes with catalytic converters as well?Laurenzo D.Sep 28, 2024
Best Answer:Hi Laurenzo, thank you for reaching out! Yes, this includes the Y-pipe with converters, as shown in the photo. Click the link below to order the kit while stocks last. Do not forget to check the part's fitment to your vehicle before checking out. Have a great day! <a href="https://www.carparts.com/headers/kooks/kch2851h420?can=cpab2020_csqa_20240928" target="_blank">https://www.carparts.com/headers/kooks/kch2851h420?can=cpab2020_csqa_20240928</a>
Andrew B.STAFFSep 28, 2024