Rebate

Flowtech 11535FLT LS Turbo Headers, Natural Finish, GM 4.8/5.3/6.0L V8

Rebate

Flowtech 11535FLT LS Turbo Headers, Natural Finish, GM 4.8/5.3/6.0L V8
Flowtech Exhaust

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#42511535FLT

Flowtech 11535FLT LS Turbo Headers, Natural Finish, GM 4.8/5.3/6.0L V8

  • The CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
  • Specially made from heavy duty 16-gauge 304SS and 409SS (Natural, Black Painted, and Ceramic Coated finishes) tubing for increased strength and durability
  • Has a 3” collector for maximum strength and exhaust flow
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$279.95

/pair

In Stock

$311.95

Save $32.00


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Product Summary

Turbo Header Tube Type, Round Exhaust Port Shape, Raw

  • The CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
  • Specially made from heavy duty 16-gauge 304SS and 409SS (Natural, Black Painted, and Ceramic Coated finishes) tubing for increased strength and durability
  • Has a 3” collector for maximum strength and exhaust flow
  • A 7/16” thick header flange is used for a leak-free seal and maximum strength
  • 3” V-Band Flanges and Clamps are included as well as premium aluminum header gaskets

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Key Specs

MFG. Part #11535FLT
Header Tube TypeTurbo
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-3/4"
See more specs

Need To Know

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855.313.9176
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Return Policy

Flowtech Exhaust 11535FLT 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) 1-3/4" 409SS GM 4.8/5.3/6.0L V8 Natural 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)

Rebates

Holley October Promo 10% Off Select Parts Sale

Holley October Promo 10% Off Select Parts SaleHolleyOctoberPromo10%OffSelectPartsSale

Holley's October Promo 10% Off Select Parts Sale, running from September 28, 2026, through November 1, 2026. For a limited time, customers can save up to 10% off on select Holley parts, making it the perfect opportunity to upgrade your ride with premium Holley branded parts including Holley, Brawler, Quick Fuel, Leg Wheels, Rev Wheels, Rocket Racing, Flowtech, Edge, Racequip, Apr and Dinan. Purchases must be made between September 28, 2026, through November 1, 2026. This limited-time offer applies to qualifying Holley branded parts purchased during the promotional period. Following the promotion, these parts will revert back to standard pricing.

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 11535FLT Specifications

KEY SPECS
MFG. Part #11535FLT
BrandFlowtech Exhaust
Header Tube TypeTurbo
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-3/4"
Material TypeStainless Steel
ColorNatural
Weld-UpNo
Collector Diameter3 Inch
FinishRaw
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedNo
Collector Attachment TypeV-band
GENERAL
Sold in QuantityPair
GTIN Code090127733028
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

Ratings & Reviews

5

2 Reviews

Overall Assessment

Customers appreciate the impressive quality and aesthetic appeal of the product, highlighting how well it fits and its visual appeal as standout features. The product's practicality was notably apparent in users' plans to make repeat purchases, reinforcing its exceptional value for its price. Furthermore, the product's quality was repeatedly praised, suggesting superiority over competing products. It's an effective blend of usability and quality, making it a preferred choice for customers.

Write A Review

5

2 reviews

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I would buy this product again

5.0

5 years ago

Joe lynch

Rochester ny

Verified

Great product and great price

Great product will buy more

5.0

5 years ago

Dave

Sacramento

Verified

These are great headers, the fit great and look great. Good quality. Definitely will be buy more for my customers.

Would Recommend

Showing 2 of 2 reviews

Questions & Answers

1 Question • 1 Answer

Is this considered forward and down

by Fast f100

• 3 months ago

1 answer

View Answer

1 of 1 questions shown

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