{
    "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
}
1990 GMC K2500
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Guaranteed to Fit1990 GMC K2500 Change Vehicle

Flowtech®
1990 GMC K2500 - Shorty Headers

Tap image and pinch to zoom.
$284.35
$355.95Save: $71.60(20%)
Manufacturer #91831FLT
Guaranteed to Fit1990 GMC K2500 Change Vehicle
Qty:
1

Your Vehicle Fit Details

Vehicle Name
Submodel
Engine
Fitment Information
1990 GMC K2500
Sierra SLX
8 Cyl 5.7L
4WD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement
1990 GMC K2500
Sierra SLX
8 Cyl 5.0L
4WD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement
1990 GMC K2500
Sierra
8 Cyl 5.7L
4WD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement
1990 GMC K2500
Sierra SLE
8 Cyl 5.0L
4WD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement
1990 GMC K2500
Sierra
8 Cyl 5.0L
4WD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement
1990 GMC K2500
Sierra SLE
8 Cyl 5.7L
4WD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement

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 1/2 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
Fitnotes:
4WD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1988-1990 Chevrolet C2500
Scottsdale
8 Cyl 5.7L
RWD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement
1988-1990 Chevrolet C2500
Scottsdale
8 Cyl 5.0L
RWD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement
1988-1990 Chevrolet K1500
Scottsdale
8 Cyl 5.0L
4WD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement
1988-1990 Chevrolet K1500
Scottsdale
8 Cyl 5.7L
4WD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement
1988-1990 Chevrolet K2500
Scottsdale
8 Cyl 5.7L
4WD, Standard, with A.I.R., 50 States Emissions Legal, CARB E.O. D-115-16, Will Work With Factory Exhaust System, Fits Where Drivers Side Manifold Has Its Exit Rear Of The Rear Exhaust Port, Stock Replacement
Page 1 of 25 | Showing 1 - 5 of 124 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
What is the best exhaust system to put with these headers?David M.Dec 31, 2023
Best Answer:Hi David, I'm glad to assist you. For us to check carefully and be accurate on the part you need, please provide the complete details of your vehicle (year, make, model, submodel, 2WD/4WD, engine size, manual or automatic transmission). The VIN would be helpful.
Jeonino E.STAFFDec 31, 2023