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Product Summary

283, 305, 307, 327, 350, 377, 383, 400, Raw, Natural

  • Has a 3” collector for maximum strength and exhaust flow
  • Uses extra thick header flange for a leak-free seal and maximum strength
  • Made from heavy duty 16-gauge 409SS tubing for increased strength and durability
  • 1-5/8” tubing diameters available for increased exhaust flow increasing performance and improved throttle response
  • The CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect

Key Specs

MFG. Part #11545FLT
BrandFlowtech Exhaust
Header Tube TypeUpswept
FinishRaw
Material TypeStainless Steel

Need To Know

This Product Will Ship Free

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Quick and Easy Returns

Return Policy

Details

Get the perfect combination of quality and value with FlowTech Upright Derby or Truck Pull Style Headers. Features a 1-5/8” tubing diameters and are ideal for even big cubic inch Small Block Chevy engines.

Also features a merged collector coupled with a collector spear that is welded inside the collector. These components help to improve the flow and performance of the header.

Features:

  • CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
  • Heavy duty 16-gauge 409SS tubing for increased strength and durability
  • 1-5/8” tubing diameters available for increased exhaust flow increasing performance and improved throttle response
  • 3” collector for maximum strength and exhaust flow
  • Extra thick header flange for a leak-free seal and maximum strength
  • Welded-in collector merge spears to control exhaust gas re-entry into primary tubes

Guides & Documents

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Specifications

KEY SPECS
MFG. Part #11545FLT
BrandFlowtech Exhaust
Header Tube TypeUpswept
FinishRaw
Material TypeStainless Steel
GENERAL
Flange StyleStandard
Primary Tube Diameter1-5/8"
ColorNatural
Weld-UpNo
Exhaust Port ShapeRectangle
Collector Diameter3 Inch
Collector Length12"
Hardware IncludedNo
Gasket(s) IncludedNo
Sold in QuantitySet
Emission Code3
GTIN Code090127734957
Collector Attachment TypeSlip fit
Collector Reducers IncludedNo