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Flowtech Exhaust

Flowtech Long Tube Header - Ceramic Coated Finish -1-5/8 in. x 3.0 in.

Part # 31100FLT Be the first to write a review

1967-1974 Camaro/Firebird - 1965-1974 Chevy Full Size Car - 1964-1972 GM A-Body - 1968-1974 GM X-Body - 265-400 SBC Engines

Flowtech Long Tube Header - Ceramic Coated Finish -1-5/8 in. x 3.0 in.

In Stock
Free Shipping - Lower 48 US States
$499.95
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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.

    See Emissions Details
Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 3/8" 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:

  • Tuned-length primary tubes for better performance
  • Mandrel-bent tubing for smooth exhaust flow
  • Light weight & sturdy 16 gauge tubing
  • Mandrel-formed Power Plenum collector for low back pressure
  • Sturdy, leak-tested O-Ring port seals
  • Engineered for a precision fit
  • Designed for easy, trouble-free installation
  • Includes all mounting hardware and premium gaskets
  • Works with factory power steering and power brakes

About Flowtech Exhaust

Flowtech provides high-quality performance exhaust systems at a great value. Explore our lineup of headers, mufflers, and exhaust systems at our official retailer, Holley.com!​

Air Injection TubesNo
Bolt Size3/8-16 x 3/4 IN
Bolts IncludedYes
Brand Flowtech Exhaust
California Proposition 65Yes
CARB (California) CompliantNo
Catalytic Converter Quantity0
CategoryExhaust
Collector Attachment3-Bolt Flange
Collector Diameter3.00 IN
Collector Reducer IncludedYes
Collector Reducer Outlet Diameter2.50 IN
ColorSilver
DesignLong Tube
Drive2WD
EGT PortNo
Emission Code4
EngineChevrolet Small Block Gen I
FinishCeramic Coated
Flange Thickness0.3125 IN
0.375 IN
3/8 IN
5/16 IN
Gasket Or Seal IncludedYes
Grade TypePerformance
Header SeriesFlowtech
Header StyleLong Tube
MaterialMild Steel
Mounting Hardware IncludedYes
Oxygen Sensor PortNo
Part TypeExhaust Header
Port ShapeOval
Primary Tubing Diameter1 5/8 IN
1.625 IN
Product TypeHeaders
QuantitySold as a Pair
Sub CategoryExhaust Manifolds
Tube Wall Thickness18 GU
UPC787480311009
Part Number31100FLT
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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

Instructions - 11100-3901fltrev.pdf
SBC Only -will NOT fit 67-69 Camaro air conditioning<br>-will NOT fit with angle plug heads or raised port heads<br>-factory motor mounts must be used for proper engine placement<br>-does NOT fit with manual transmission on Monte Carlo and late model passenger wag
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    *Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.

    Flowtech Long Tube Header - Ceramic Coated Finish -1-5/8 in. x 3.0 in.
    Flowtech Long Tube Header - Ceramic Coated Finish -1-5/8 in. x 3.0 in.
    $499.95