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Guaranteed to Fit1990 GMC S15 Change Vehicle

Flowtech®
1990 GMC S15 - Shorty Headers

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$272.65
$340.95Save: $68.30(20%)
Manufacturer #11502FLT
Guaranteed to Fit1990 GMC S15 Change Vehicle
Qty:
1

Your Vehicle Fit Details

Vehicle Name
Submodel
Engine
Fitment Information
1990 GMC S15
High Sierra
6 Cyl 2.8L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1990 GMC S15
Sierra Classic
4 Cyl 2.5L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1990 GMC S15
Sierra Classic
6 Cyl 4.3L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1990 GMC S15
Sierra Classic
6 Cyl 2.8L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1990 GMC S15
High Sierra
6 Cyl 4.3L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1990 GMC S15
Base
4 Cyl 2.5L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1990 GMC S15
Base
6 Cyl 4.3L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1990 GMC S15
High Sierra
4 Cyl 2.5L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1990 GMC S15
Base
6 Cyl 2.8L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap

Highlights

Part:
Brand:
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:
5/16 in. Thick Head Flange
Includes:
With Gaskets and Bolts/Studs
Material:
Made of Steel
Port Shape:
Round Port
Primary Tube Gauge:
16 Gauge
Fitnotes:
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1982 GMC S15
Sierra Grande
6 Cyl 2.8L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1982 GMC S15
Sierra Grande
4 Cyl 1.9L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1982-1985 Chevrolet S10
Base
4 Cyl 1.9L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1982-1985 Chevrolet S10
Durango
4 Cyl 1.9L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
1982-1985 Chevrolet S10
Sport
4 Cyl 1.9L
Standard Header; Primary Tube Coll. Size 1.5X2.5 In.; Without A.I.R. Tubes; For Engine 283-400 Swap; Modify Stock Exhaust To Retain Catalytic Converter; Small Block Chevy Swap
Page 1 of 22 | Showing 1 - 5 of 109 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

1
Are these headers for the 4.3 liter engine ?Jose R.Aug 14, 2021
Best Answer:Hi Jose, I'm glad to help you out. Yes, it's listed for some models with 4.3-liter engines. Please be advised that it is illegal to install this on an emission-controlled or non-racing vehicle. You can use the link below to order and enjoy the sale price. I hope this helps. Happy shopping. <a href="https://www.carparts.com/headers/flowtech/f3111502?can=cpab2020" target="_blank">https://www.carparts.com/headers/flowtech/f3111502?can=cpab2020</a>
Andrew B.STAFFAug 14, 2021
0
Will these fit my 1987 2wd 2.8L V6 S10?Leonardo F.Jul 21, 2024
Best Answer:Hi Gru, I'm glad to assist you. Yes. It is guaranteed to fit the 1987 Chevrolet S10 Base 6 Cyl 2.8L. Grab our discounted price and click the link below to buy it today. Happy shopping! <a href="https://www.carparts.com/headers/flowtech/f3111502?can=cpje1043_CSQA_20240721" target="_blank">https://www.carparts.com/headers/flowtech/f3111502?can=cpje1043_CSQA_20240721</a>
Jeonino E.STAFFJul 21, 2024
0
What is the average horse power that  the shorty flowtech headers give a little pickup truck pickup?Jonathan C.Jun 03, 2021
Best Answer:Hi Jonathan, I'm glad to assist you. The exact horsepower gains is not noted on our supplier's website (<a href="https://www.holley.com/products/exhaust/headers_and_exhaust_manifolds/all_headers/parts/11502FLT" target="_blank">https://www.holley.com/products/exhaust/headers_and_exhaust_manifolds/all_headers/parts/11502FLT</a>). Based on the details from their online catalog , the headers improves exhaust pulse velocity and provide optimum exhaust flow. You can actually call Flowtech technical support at 270-781-9741 to ask specific details about the part such as well. Once flowtech clarifies details, you can order this part today and take advantage of the best price among other online stores. I hope this helps. Happy shopping. <a href="https://www.carparts.com/headers/flowtech/f3111502?can=CPJE1043" target="_blank">https://www.carparts.com/headers/flowtech/f3111502?can=CPJE1043</a>
Jeonino E.STAFFJun 03, 2021