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Flowtech LS Turbo Headers 11540FLT Headers, Turbo, Forward Up, Stainless Steel, 1 7/8 in. Primary Tube, Polished, 3 in. Collector, Pair

SKU: BIG11540FLT

Headers

Flowtech LS Turbo Headers 11540FLT Headers, Turbo, Forward Up, Stainless Steel, 1 7/8 in. Primary Tube, Polished, 3 in. Collector, Pair

SKU: BIG11540FLT

Headers

Sale ends in Calculating...

A$1,102.28 A$1,146.16
LAST ONE! Est Ship 4-7 days. LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description

IMPORTANT NOTICE: Note for Australian and European MarketsUnless otherwise stated, this product may be engineered for use in Left-Hand Drive vehicles. Steering components, pedals, shifters, linkages, instrument clusters, panhard rods/traction bars, drag links, brake boosters, brake or clutch lines, accelerator cables, heater cores, some master cylinders and adjacent parts can vary between LHD and RHD configurations. In some models compenents such as windscreen wiper arms, motors and linkages could differ in their size and orientation. Items such as floor mats & dash mats may have differences in their structure around the front row (or padding in different locations). In many cases items are identical depending on the design of the vehicle and part, but may have differing mounts, lengths or bolt patterns. Carefully review the product images and details to ensure suitability for your vehicle, or contact StreetFX support if you are unsure. Returns are not accepted for special order products.(keyword: headers)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Flowtech StreetFX SKU big11540FLT SFX Item ID 5092164 Accounting SKU big-11540FLT Manufacturer SKU 11540FLT Manufacturer UPC 090127733073 Alternative References 11540FLT, BIG-11540FLT, FLT11540

Headers - LS Turbo Headers - 1.875 in Primary - 3 in Collector - Up and Forward - Gaskets Included - Stainless - Polished - GM LS-Series - Universal - Pair


Data: v2 - Desc: v4.2 - Upd: 2026-10-14 03:26:42

Part Type

LS 304ss Turbo Headers Up & Forward Style

Data: v4.2 - Upd: 2026-10-14 04:23:05

Specifications

Headers, LS Turbo, Forward Up, Stainless Steel, 1 7/8 in. Primary Tube, Polished, 3 in. Collector, Pair

Flowtech LS turbo headers improve smooth-flow engine breathing and increase cylinder scavenging effect by providing consistent tubing diameters. Constructed of heavy-duty, 16-gauge stainless steel, they're available in natural, black painted, and ceramic coated finishes. These headers offer 1 3/4 and 1 7/8 in. tubing diameters for increased exhaust flow, increased performance, and improved throttle response. A 3 in. collector provides additional strength and durability.

Product Attributes
BrandFlowtech
Manufacturer's Part Number11540FLT
Part TypeHeaders
Product LineFlowtech LS Turbo Headers
UPC090127733073
Header StyleForward and up
Header Material304 stainless steel
Primary Tube Outside Diameter (in.)1 7/8 in.
Header ColorPolished
Flange StyleStandard
Weld-UpNo
Cylinder Head Port ShapeRound
Collector AttachmentV-band
Collector Diameter (in.)3.00
Collector Reducers IncludedNo
TunedNo
Primary Tube Gauge16-gauge
Flange Thickness (in.)0.44 in.
Bolts/Studs IncludedNo
Gaskets IncludedYes
Crossover Pipe IncludedNo
Catalytic Converter(s) IncludedNo
Motor Mounts IncludedNo
Transmission Mount IncludedNo
QuantitySold as a pair.
NotesIncludes 3.000 in. V-band clamps.

Reference Information

Brand Name/s Flowtech
StreetFX SKU big11540FLT
SFX Item ID 5092164
Supplier Item Code 5092164
Manufacturer SKU 11540FLT
Manufacturer UPC 90127733073
Alternative References FLT11540

Compatibility

No specific fitment data available for this part. For clarification, please contact us.

Detailed Compatibility


Application Data
MakeCHEVROLET
Beginning Year1997
Ending Year2005
Engine TypeV8
Engine FamilyChevy small block Gen III/IV (LS-based engines)
Engine Size5.7L/350
Power SteeringNo
Power Brakes (application)No
Air ConditioningNo
Standard Transmission Column ShiftNo
Standard Transmission Floor ShiftNo
Automatic Transmission Column ShiftNo
Automatic Transmission Floor ShiftNo
Application NotesIncludes 3.000 in. V-band clamps.
MakeCHEVROLET
Beginning Year1997
Ending Year2005
Engine TypeV8
Engine FamilyChevy small block Gen III/IV (LS-based engines)
Engine Size5.7L/350
Power SteeringNo
Power Brakes (application)No
Air ConditioningNo
Standard Transmission Column ShiftNo
Standard Transmission Floor ShiftNo
Automatic Transmission Column ShiftNo
Automatic Transmission Floor ShiftNo
Application NotesIncludes 3.000 in. V-band clamps.
MakeCHEVROLET
Beginning Year1999
Ending Year2014
Engine TypeV8
Engine FamilyChevy small block Gen III/IV (LS-based engines)
Engine Size5.3L/325
Power SteeringNo
Power Brakes (application)No
Air ConditioningNo
Standard Transmission Column ShiftNo
Standard Transmission Floor ShiftNo
Automatic Transmission Column ShiftNo
Automatic Transmission Floor ShiftNo
Application NotesIncludes 3.000 in. V-band clamps.

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.

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