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Exhaust Headers, Manifolds and Components

Flowtech

Tight Fit Block Hugger Headers Ceramic Coated Chevy LS Motor Tube Size 1-5/8 Inch Collector Size 2-1/2 Inch Silver Metallic Ceramic Coated FlowTech

$633.95 $562.95 Save $71.00

SKU: F00M 11706-1FLT

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In Stock
Ships by Aug 5
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 11706-1FLT

Flowtech Headers are the perfect combination of quality and value. This block hugger header fits all popular hot rods with the popular Chevy LS motors. This header is coated with metallic ceramic coating for maximum performance and corrosion resistance with a stylish look.

Features:

  • Tight fit block hugger design for popular hot rods powered by the popular Chevy LS motors
  • Ideal For Street Rods
  • Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increased exhaust velocity
  • Mandrel Bent Tubes Provide Smooth Flow/Increased Exhaust Velocity
  • Heavy duty 16-gauge tubing for increased strength and durability
  • 16 Gauge Tubing Increases Strength
  • Smooth transition, 1-5/8" diameter primary tubes are used for increased exhaust flow increasing performance and improving throttle response
  • Increases Performance
  • TIG Welded 2-1/2" collector for maximum strength
  • Improves Throttle Response
  • Machined 3/8" header flange for a leak-free seal and maximum strength
  • TIG Welded
  • Premium aluminum header gaskets included
  • Leak Free Seal
  • Adapter tubes are supplied for easy exhaust connection
  • Premium Hardware/Gaskets
  • This header is coated with silver metallic ceramic coating which improves performance and reduces skin temperature
  • Adapter Tubes Supplied For Easy Connection

Headers - Block Hugger - 1-3/4 in Primary - 2-1/2 in Collector - Steel - Metallic Ceramic - GM LS-Series - Universal - Pair

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

Flowtech Tight Fit Block Hugger Headers offer a combination of quality and value for hot rods with Chevy LS motors. These ceramic-coated headers provide maximum performance and corrosion resistance with a stylish look, featuring mandrel-bent 1-5/8” primary tubes, a 2-1/2” collector, and a 3/8” header flange. Designed for racing use only, they are compatible with both 2WD and 4WD GM Gen III/IV (LS) engine applications.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandFlowtech
Part NumberF00M 11706-1FLT

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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