SKU: 36752544507

Flowtech LS Swap Exhaust Manifolds - 11730FLT

Sale price$124.17 Regular price$137.97
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 2 - Sep 7

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Description

Flowtech LS Swap Exhaust Manifolds - 11730FLTOverview: These Flowtech cast iron exhaust manifolds have a 2. 25 inch outlet, natural cast finish, and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine swap applications at a budget friendly price. Being cast iron means they will provide years of leak free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your

Overview:

These Flowtech cast iron exhaust manifolds have a 2.25-inch outlet, natural cast finish, and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications at a budget-friendly price. Being cast iron means they will provide years of leak-free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance.

Features:

  • Intended for GM LS engine swap applications where durability and leak-free sealing is desired at a budget-oriented price
  • 304 stainless steel mating flanges included (mating flange fasteners are not included)
  • 2.25 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • 2 bolt exit flange configuration matches the E-rod exhaust manifolds for a factory like fitment. This allows the use of OE gaskets and fasteners if desired, for an OE quality seal and fitment to emissions devices
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance

Application:

  • Universal

Specs:

Application Multi-fit
Brand Flowtech
Choose Your Part Manifold
Collector Diameter 2.25 inch
Emission Code 8
Engine GM LS
Finish Natural
Header Finish Natural
Header Style Manifold
Material Cast Iron
Primary Tube Dia. 1-3/4 inch
Product Type Manifold
Subframe Stock
Tube Material Cast Iron
Type of Component Manifold
Warning California Proposition 65
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 36752544507

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Brad Sorrow
Omaha, US
★★★★★ 5
Best phone holder I have ever purchased!
Color: Dark Black, Size: 1 Pack
Hands down the best phone holder I have ever purchased. The ones that stick to the windshield always end up coming loose. This attached to your vent and is super sturdy. Very easy to install and uninstall without making a mess on your window.
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Reviewed in the United States on April 27, 2026
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Kirsten Fahey
Whiting, US
★★★★★ 5
Amazing Product!
Product worked great on some of the older trucks I use for construction vehicles. This product made all the lights look brand spanking new. Awesome product, and definitely recommend if you have any fogging in your headlights. It doesn’t matter the age of the cars/trucks as this product makes them look brand new regardless. I used on both new and older vehicles and you couldn’t tell the difference because the lights looked so clean on both. The product worked amazing . I also noticed at nighttime the headlights provided better visibility too! Perfectly priced!
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Reviewed in the United States on August 15, 2025
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AquaNar
Pawtucket, US
★★★★★ 5
This works
Wow!! I am shocked at how good this works. In addition to the fact that it works, it is Packaged with novice people in mind to get maximum results. This was worthy of before and after pictures; but, starting tge project, honestly didn't think it would result in the way it did.
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Reviewed in the United States on December 22, 2025
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Robert Brice
Alexandria, US
★★★★★ 4
Headlight cleaner
Gave as a gift. Haven’t heard anything negative
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Reviewed in the United States on April 9, 2026
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Kathleen Bauer
Cuba, US
★★★★★ 5
Excellent results
I have an older truck with badly oxidized headlights. I saw this product advertised and decided to give it a try. It was amazing how easy it was to do. 3 step process and the most remarkable results! I had a question regarding the process, called the number on the QR code and spoke to a person! OhJoy! More than helpful, put a whole new meaning to "service after the sale"I highly recommend this product and this company!
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Reviewed in the United States on September 2, 2025

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