SKU: 79412790137

Long Tube Header for 1968-74 Oldsmobile Cutlass 5.7/6.6 - Ceramic Coated - 31150FLT FlowTech

Sale price$263.23 Regular price$292.48
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

Long Tube Header for 1968-74 Oldsmobile Cutlass 5.7/6.6 - Ceramic Coated - 31150FLT FlowTechOverview: 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 and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces

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 and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance.

Features:

  • Fuel Economy From The Engine
  • Leak Test For Max Performance
  • Ceramic Headers
  • Rust And Corrosion Resistance
  • Mandrel-Formed Power Plenum
  • Leakproof O-Ringed Port Seals
  • Include All Mounting Hardware

Application:

Year Make Model Engine Fitment Notes
1968-1969 Oldsmobile 442 6.6L V8 400 CID See Below!
1968-1974 Oldsmobile Cutlass 5.7L V8 350 CID See Below!
1968 Oldsmobile Cutlass 6.6L V8 400 CID See Below!

Fitment Notes:

  • Will not fit column mounted standard or floor mounted automatics or Cutlass Supreme models.
  • Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage.
  • The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.
  • Recommended replacement gasket - Mr. Gasket part# 453
  • Must modify exhaust system to retain catalytic converters.

Specs:

Bolt Size 3/8-16 x 3/4 In.
Brand Flowtech
Collector Diameter 3.00 inch
Emission Code 4
Engine Oldsmobile V8
Header Finish Silver Ceramic
Header Style Long Tube
Primary Tube Dia. 1-3/4 inch
Product Type Headers
Tube Material Mild Steel

Emissions:

  • This part is legal for sale or use on Racing Use Only Vehicles
  • The following vehicles are considered Racing Use Only Vehicles:
    • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.
  • WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
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: 79412790137

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4.8 ★★★★★
Based on 19 reviews
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Verified Purchase
ymf
San Leandro, US
★★★★★ 5
Good candies!
Wow a candy thats good for your teeth! I can finally say YES to my kids even after they brush their teeth! They taste good too! I was scared to try them and was pleasantly surprised!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2025
P
Verified Purchase
PC
Port Orchard, US
★★★★★ 3
Less flavor than the pops. Very disappointing.
I bought these after trying the lollipop type of the same brand. Honestly? I was disappointed in the lack of flavor in yhe drops versus the lollipop style. The reason I purchased the drops was because I do not like dealing with the stick of the pop and just wanted the sucker part of the candy. I thought being the same flavors that they would have the same taste. They do not. The drops have much less enjoyable flavor and are quite bland in comparison to the lollipop style. I guess I'm sticking with dealing with the stick to get any good flavor. I also wish the variety of the flavors in both the Zollipops and Zolli Drops was more evenly distributed. The orange are my favorite flavor and the ratio is low compared to the pink or purple and less flavorful pieces. Anyway, just my 2 cents on the difference I noticed between the two variations of the same product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
O
Verified Purchase
O'bie
West Palm Beach, US
★★★★★ 5
Drops are easier to open
I like the zolli drops better than the pops. They are easier to open!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
B
Verified Purchase
Barefoot in the Meadow
Waukegan, US
★★★★★ 5
Delicious!
Perfect for those days when you need a little something. You will never know they're sugar free, amd the flavors are on point. These are in regular rotation in our home now - and guilt free!
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Reviewed in the United States on June 10, 2025
G
Verified Purchase
grey_area
Phoenix, US
★★★★★ 5
Great option for fluoride-free families, has helped my sensitive teeth dramatically
This is a great non-fluoride toothpaste. Our whole family switched to nano hydroxyapatite instead of fluoride pastes, we have had great dental visits and no regrets. No one has had a cavity since switching 2 years ago, but three of the four of us didn’t have cavities to begin with. I would say that my own sensitivity to cold (something I’ve had for 40 years) has decreased significantly since using this daily. This paste is far more effective for sensitivity than high fluoride options have been for me. My two teenage boys both love this toothpaste. My teeth feel clean. I wouldn’t say the toothpaste whitens better than any other paste does. My mouth feels fresh after brushing. I like the idea of remineralizing tooth surfaces but I don’t know how I would quantify that. The flavors are all good, I would rank them as follows: lemon lavender, mint, cinnamon mint, cardamom, ginger (don’t get it if you don’t LOVE ginger). Cardamom is really nice but I could see getting tired of it. Ginger is kinda weird. My boys love the lemon lavender the best. The flavors can be intense but in a natural, not artificial way. It’s not too sweet at all like some pastes can be. This toothpaste is absolutely worth the higher price point. I feel good about my family using it.
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Reviewed in the United States on March 11, 2026

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