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Flowtech 31533FLT Long Tube Header, Ceramic Coated
Flowtech 31533FLT Long Tube Header, Ceramic Coated

Flowtech 31533FLT Long Tube Header, Ceramic Coated

LM7 Chevy LS V8, LR4 Chevy LS V8, Long Tube Header Tube Type, Ceramic Coated, Mild Steel

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Flowtech 31533FLT Long Tube Header, Ceramic Coated
Flowtech 31533FLT Long Tube Header, Ceramic Coated
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We estimate this item will ship on or before October 25th.
Part # 42531533FLT
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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
Ceramic Coated
Flange Style:
Round Port
Primary Tube Diameter:
Material Type:
Mild Steel
MFG. Part #:
Collector Diameter:
3 Inch
Flange Thickness:
Hardware Included:
Gasket(s) Included:
Sold in Quantity:
Emission Code:
GTIN Code:


Flowtech Headers are the perfect combination of quality and value. This long tube header with high flow Y-pipe fits the popular 1999-2006 Chevy Silverado/GMC Sierra 1500 V8-4.8L/5.3L 2WD.

  • High flow, mandrel-bent tubes provide consistent tubing diameters for smooth flow and increased exhaust velocity
  • Heavy duty tubing and high quality welds for increased strength and durability
  • Smooth transition, 1-3/4 diameter primary tubes are used for increased exhaust flow increasing performance, improving throttle response and broadening the torque curve
  • 3 slip-on collectors connect to a 3 high flow Y-pipe that connects at the factory exhaust location
  • TIG-welded, machined 3/8 header flange for a leak-free seal and maximum strength
  • Premium aluminum header gaskets and installation hardware included
  • Available in a high heat resistant black paint or a satin silver metallic ceramic thermal barrier coating
  • Connections for O2 sensors are located on collectors. Catalytic converter must be relocated
  • Headers are a must if you are using a cold air intake, cat-back exhaust system or tuner


1999 Chevy Silverado 1500
1999 GMC Sierra 1500
2000 Chevy Silverado 1500
2000 GMC Sierra 1500
2001 Chevy Silverado 1500
2001 GMC Sierra 1500
2002 Chevy Silverado 1500
2002 GMC Sierra 1500
2003 Chevy Silverado 1500
2003 GMC Sierra 1500
2004 Chevy Silverado 1500
2004 GMC Sierra 1500
2005 Chevy Silverado 1500
2005 GMC Sierra 1500
2006 Chevy Silverado 1500
2006 GMC Sierra 1500
Some parts are not legal for use in California or other states with similar laws/regulations

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  • 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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