Flowtech LS Swap Exhaust Manifolds  - 31730-1FLT
SKU: 3572181610

Flowtech LS Swap Exhaust Manifolds - 31730-1FLT

Sale price$149.82 Regular price$166.47
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Flowtech LS Swap Exhaust Manifolds - 31730-1FLTOverview: 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 Silver Ceramic
Header Finish Silver Ceramic
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: 3572181610

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C. Mahoney
Louisville, US
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Format: Hardcover
Perfect read aloud
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Reviewed in the United States on December 24, 2024
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Carnegie, US
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funny
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It was very funny and it was a child book which would be good for little kids. I highly recommend
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Reviewed in the United States on July 23, 2024
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Anna DeHamer
Battle Creek, US
★★★★★ 5
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Scent: Assorted, Scent: Assorted
This Rinse & Robust 4-pack men’s soap is a great option for anyone looking for a refreshing and rugged scent in their daily routine. The bars come in four distinct manly fragrances—Santal, Leather, Charcoal & Clove Oil, and Cedar Citrus—which provide a long-lasting clean feeling. Made with natural ingredients like oat, green tea extract, and coconut oil, these soaps offer both exfoliation and moisture without harsh chemicals like sulfates or parabens. The 4-in-1 design makes them versatile for body, hands, face, and even shaving, making skincare simple and convenient. Packaged in a sleek gift box, this set makes an excellent gift for any man who appreciates high-quality grooming products.
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Reviewed in the United States on January 29, 2025
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Jessica Arechiga
Boise, US
★★★★★ 5
Smells amazing!
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All of my boys loved these, highly recommend if you looking for natural soaps that smell amazing.
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Reviewed in the United States on March 28, 2026
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Ernest M.
Draper, US
★★★★★ 4
Good product
Scent: Assorted
Good soap set I like the smell and the 4 pack last a good while. My only complaint about the soap is at the end it was soggy soap and hard to get it to dry. I will give the other bar a try if it does the same thing I might not be using this.
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Reviewed in the United States on May 18, 2025

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