SKU: 11830687439

Flowtech Long Tube Header - Black Paint - 11150FLT

Sale price$149.37 Regular price$165.97
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

Flowtech Long Tube Header - Black Paint - 11150FLTOverview: Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5 16" flanges with sealing rings for a leak free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat resistant black paint for a stealthy appearance. Features: Fuel Economy From The Engine Leak Test For Max

Overview:

Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat resistant black paint for a stealthy appearance.

Features:

  • Fuel Economy From The Engine
  • Leak Test For Max Performance
  • Mandrel-Formed Power Plenum
  • Leakproof O-Ringed Port Seals
  • Include All Mounting Hardware
  • Constructed of .049 cold roll flash mild steel tubing
  • Precision engineered for fit, performance and economy

Application:

  • 1968-1977 Oldsmobile Cutlass
  • 1975-1977 Oldsmobile Cutlass Salon
  • 1977-1979 Pontiac Firebird
  • 1976 Oldsmobile Cutlass Tiara

Specs:

Brand Flowtech
Collector Diameter 3.00 inch
Emission Code 4
Engine Oldsmobile V8
Header Finish Black Paint
Header Style Long Tube
Primary Tube Dia. 1-3/4 inch
Product Type Headers
Tube Material Mild Steel
Warning California Proposition 65
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 11830687439

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4.1 ★★★★★
Based on 23 reviews
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R
Verified Purchase
Richard J Enright Jr
Los Angeles, US
★★★★★ 5
Works
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 10W-30
The seal conditioners seem to be working as I’m seeing less oil dripping onto the ground now under my jeep
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
G
Verified Purchase
Goober
Houston, US
★★★★★ 5
Good
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 5W-30
Good oil. Stopped leak
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
B
Verified Purchase
Brady legree
Port Orchard, US
★★★★★ 5
a great new high mileage oil
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 5W-30
this oil actually made my high mileage (230k) car run better .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
S
Verified Purchase
Sergii Bondar
Draper, US
★★★★★ 5
Good motor oil
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 5W-20
The engine oil meets the stated requirements.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
K
Verified Purchase
Kerns
Carnegie, US
★★★★★ 5
Definitely buying again.
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 5W-20
In MY experience, this has been fantastic, spouses car is a 200k+ mileage Kia shortage, which I mean, it’s always burned oil, even the manual said normal operation can burn 1qt per 1,000 miles. Either way, i was adding oil a lot. At least 2 quarts a month or more. After running this oil, I have only added 1.5 quarts in over 2 months. Results obviously not typical, but in my experience, this stuff works. I also use the restore and protect Valvoline on my car, with great results. Scoped it after a few full oil changes and engine looks clean. Great value for what it potentially will do.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026

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