Talk to the experts. Call 800.979.0122, 7am-10pm CST, everyday.

REWARDS

GIFT CARDS

DEALS

TRACK ORDER

HELP CENTER

My

List

Menu

Shop

Garage

Cart

Account

-11%

Flowtech 11540FLT LS Turbo Headers, Polished, GM 4.8/5.3/6.0L V8

-11%

Flowtech 11540FLT LS Turbo Headers, Polished, GM 4.8/5.3/6.0L V8
Flowtech Exhaust

|

#42511540FLT

Flowtech 11540FLT LS Turbo Headers, Polished, GM 4.8/5.3/6.0L V8

$399.95

/pair

Factory Shipped

$449.95

Save $50.00


Quantity

Need Help? Call to Order

Add to a list

Share

Select an engine to verify Fitment

Select Engine

Product Summary

Turbo Header Tube Type, Standard Flange Style, Natural

    See more details

    Key Specs

    MFG. Part #11540FLT
    Header Tube TypeTurbo
    Flange StyleStandard
    Primary Tube Diameter1-7/8"
    Material TypeStainless Steel
    See more specs

    Need To Know

    Need help?

    855.313.9176
    View the Help Center

    Quick and Easy Returns

    Return Policy

    Flowtech Exhaust 11540FLT Details

    Flowtech Headers are the perfect combination of quality and value. These “4 to 1” LS Turbo headers available in 1-3/4” and 1-7/8” tube diameters are an ideal design creating a compact package allowing a variety of configurations (Up and Forward, Down and Forward, or Down and Back) to be used as a universal fit Turbo header.

    LS Turbo Headers (Up and forward) 1-7/8" 304SS GM 4.8/5.3/6.0L V8 Polished Finish

    • 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 304SS (Polished Finish Only) and 409SS (Natural, Black Painted, and Ceramic Coated finishes) tubing for increased strength and durability
    • 1-3/4” and 1-7/8” tubing diameters available for increased exhaust flow increasing performance and improved throttle response
    • 3” collector for maximum strength and exhaust flow
    • 7/16” thick header flange for a leak-free seal and maximum strength
    • Premium aluminum header gaskets included
    • 3” V-Band Flanges and Clamps are included
    • Available in a total of four finishes (Natural, Black Painted, Ceramic Coated, and Polished)

    Guides & Documents

    Choosing the Right Headers

    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.
    CARB warning

    Flowtech Exhaust 11540FLT Specifications

    KEY SPECS
    MFG. Part #11540FLT
    BrandFlowtech Exhaust
    Header Tube TypeTurbo
    Flange StyleStandard
    Primary Tube Diameter1-7/8"
    Material TypeStainless Steel
    ColorNatural
    Weld-UpNo
    Collector Diameter3 Inch
    FinishPolished
    Hardware IncludedYes
    Gasket(s) IncludedYes
    Collector Reducers IncludedNo
    Collector Attachment TypeV-band
    GENERAL
    Sold in QuantityPair
    GTIN Code090127733073
    TunedNo
    Crossover Pipe IncludedNo
    Primary Tube Gauge16-gauge
    Gaskets IncludedYes
    Transmission Mount IncludedNo
    Cylinder Head Port ShapeRound
    Catalytic Converter(s) IncludedNo
    Motor Mounts IncludedNo
    Bolts Studs IncludedNo

    Fitment

    • GM LM4

    • GM LS6

    • GM LS2

    • GM LSA

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM L76

    • GM LC9

    • GM LMG

    • GM LY5

    • GM LY5

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • GM LS1

    • GM LS3

    • GM LS1

    • GM LS1

    • GM LS6

    • GM LS2

    • GM LS3

    • GM LS4

    • GM LS4

    • 4.8 Chevy LS V8

    • GM LM7

    • 4.8 Chevy LS V8

    • GM L20

    • GM LM7

    • GM LY2

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ9

    • GM LQ4

    • GM LM7

    • GM LQ4

    • GM LQ9

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LS3

    • GM LM4

    • GM LMG

    • GM LY5

    • GM LM7

    • GM L59

    • GM LM7

    • GM LC9

    • GM LMG

    • GM LY5

    • GM LC9

    • GM LMG

    • GM LMG

    • GM LY5

    • GM LQ4

    • GM LMG

    • GM LY5

    • 4.8 Chevy LS V8

    • GM L59

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LMG

    • GM LY5

    • 6.2 Chevy LS V8

    • GM LC9

    • GM LMG

    • GM LC9

    • GM LMG

    • GM LMG

    • GM LY5

    • GM LH6

    • GM LS2

    • GM LM4

    • GM LM4

    • GM LM4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • GM L20

    • GM LC9

    • GM LMG

    • GM L33

    • GM L59

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L20

    • GM LM7

    • GM LY2

    • GM LC9

    • GM LMG

    • GM LM7

    • GM L59

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • 6.2 Chevy LS V8

    • GM LH8

    • GM LH8

    • GM LS1

    • GM LS3

    • GM LS1

    • GM LS2

    Customer Impersonation Script