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Flowtech 11132FLT Long Tube Header, 3.5 Inch Collector Size
Flowtech 11132FLT Long Tube Header, 3.5 Inch Collector Size

Flowtech 11132FLT Long Tube Header, 3.5 Inch Collector Size

396 Chevy Big Block V8, 402 Chevy Big Block V8, 427 Chevy Big Block V8, 454 Chevy Big Block V8

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Flowtech 11132FLT Long Tube Header, 3.5 Inch Collector Size
Flowtech 11132FLT Long Tube Header, 3.5 Inch Collector Size
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We estimate this item will ship on or before October 23rd.
Part # 42511132FLT
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 2 business days for Flowtech Exhaust to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.


Header Tube Type:
Long Tube
Primary Tube Diameter:
Material Type:
Mild Steel
MFG. Part #:
Collector Diameter:
3-1/2 Inch
Hardware Included:
Gasket(s) Included:
Sold in Quantity:
Emission Code:
GTIN Code:


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.

  • Tuned-length primary tubes for street 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 air conditioning, automatic and manual transmissions

Installation Instructions (PDF)


1963 Chevy Bel Air
1963 Chevy Biscayne
1963 Chevy Impala
1966 Chevy Bel Air
1966 Chevy Biscayne
1966 Chevy Caprice
1966 Chevy Impala
1967 Chevy Bel Air
1967 Chevy Biscayne
1967 Chevy Camaro
1967 Chevy Caprice
1967 Chevy Impala
1968 Chevy Bel Air
1968 Chevy Biscayne
1968 Chevy Camaro
1968 Chevy Caprice
1968 Chevy Chevy II
1968 Chevy Impala
1969 Chevy Bel Air
1969 Chevy Biscayne
1969 Chevy Camaro
1969 Chevy Caprice
1969 Chevy Impala
1969 Chevy Nova
1970 Chevy Bel Air
1970 Chevy Caprice
1970 Chevy Impala
1970 Chevy Kingswood
1970 Chevy Nova
1970 Chevy Townsman
Some parts are not legal for use in California or other states with similar laws/regulations

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Q & A

  • Maintaining your headers is an important part of any hot rod. Pat gives some tips and demonstrates how well Purple Metal Polish works for keeping your headers looking great.
  • Wouldn't it be nice to get the best of both worlds out of your headers? Speedway Motors has solved that problem with our exclusive heat resistant Armor Hot Coating. Now you can keep that great look with longer life.
  • Pat shows that exhaust can make a difference on even your daily driver. Check out this video of Pat with the Hooker Muffler installed on his '03 Suburban.
  • Our Tru-Ram Exhaust Manifolds are one of our most popular items. Tim provides more details about them and gives you a great look at them.

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