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-11%

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished

-11%

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished
Flowtech Exhaust

|

#42511576FLT

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished

  • These universal rear exit shorty headers will fit GM LS1, LS2, LS3, LS6, LSX engines
  • Features 1-5/8” mandrel bent primary tubes and 2-1/2” collectors
  • Has 3/8” thick header flanges for a leak-free seal
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$316.95

/each

In Stock

$356.95

Save $40.00


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Product Summary

Universal Fit, Shorty Header Tube Type, Stainless Steel

  • These universal rear exit shorty headers will fit GM LS1, LS2, LS3, LS6, LSX engines
  • Features 1-5/8” mandrel bent primary tubes and 2-1/2” collectors
  • Has 3/8” thick header flanges for a leak-free seal
  • Comes with 2-1/2” reducers with oxygen sensor bungs
  • They are available in natural 304 stainless steel and polished 304 stainless steel
See more details

Key Specs

MFG. Part #11576FLT
Header Tube TypeShorty
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-5/8"
See more specs

Need To Know

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855.313.9176
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Flowtech Exhaust 11576FLT Details

Flowtech Exhaust products are the perfect combination of quality and value. We are proud to offer these Universal LS Swap Headers with 1-5/8" primaries and 2-1/2" collectors. These headers are made of 304 stainless steel and are available in both natural and polished finishes.

  • Universal rear exit shorty headers for GM LS1, LS2, LS3, LS6, LSX engines
  • 1-5/8” mandrel bent primary tubes and 2-1/2” collectors
  • 3/8” thick header flanges for a leak-free seal
  • Premium gaskets and collectors hadrware.
  • 2-1/2” reducers with oxygen sensor bungs included
  • Available in natural 304 stainless steel and polished 304 stainless steel

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.
CA Prop 65
CARB warning

Flowtech Exhaust 11576FLT Specifications

KEY SPECS
MFG. Part #11576FLT
BrandFlowtech Exhaust
Header Tube TypeShorty
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeStainless Steel
ColorNatural
Weld-UpNo
Collector Diameter2-1/2 Inch
FinishPolished
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedYes
Collector Reducer Exit Diameter2.5"
Collector Attachment Type3-bolt flange
GENERAL
Sold in QuantityPair
GTIN Code090127040218

Ratings & Reviews

4.3

6 Reviews

Overall Assessment

Customers have favorably recommended the headers for their quality and functionality. The product fits well and enhances engine performance, contributing to a satisfying rumble. The solid craftsmanship of the headers is praised, although some customers noted slight adjustments were necessary for perfect fitment, expressing a willingness to purchase the product again for future projects. Some encountered issues with incorrect fitment for certain applications despite the universal claim. It is confirmed by customers as an excellent option for LS engine swaps in older models cars like 1957 Chevy.

Write A Review

4.3

6 reviews

5

2

4

4

3

0

2

0

1

0

Filter by Ratings

I would by this again.

4.0

2 years ago

Grouch

Mo.

Verified

90° spark plug wires will be required. Slightly touching the cast projection on the right side and will have to remove some to clear.

Would Recommend

LS3 headers for 1957 Chevy

4.0

2 years ago

Matt

Caldwell ID

Verified

Headers fit well had to grind aluminum tab off block on passenger side to fit.

Would Recommend

Beautiful headers, but didn't fit my application.

4.0

3 years ago

Stevio

Ontario, Canada

I ordered these for my 1987 Firebird that I'm swapping to a 5.3 LS. The website said these were universal and fit the application, but they don't. Just thought I'd leave a review to let others know. Headers are beautiful though, really wish I could use them. I'd like to find another set of these, but a little different design.

Would Recommend

I will buy again

5.0

3 years ago

Jrohletter

Westminster SC

Verified

Put on my LS swap and if I do another one I'll buy them again.

Would Recommend

I want to hear the roar!

5.0

4 years ago

JJ-Hill

Wesley Chapel, FL

Verified

In the build process, was wavering on stock or headers - went with headers, I like a good rumble

Would Recommend

Great product

4.0

5 years ago

RocoII

Globe Az

Verified

Only reason i didn't give 5 stars is the mounting holes seemed to be off a bit. Was tough to get the bolts started, but craftsmanship is on point.

Would Recommend

Showing 6 of 6 reviews

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