BMW B58 Super 5" CERAMIC COATED Sports Cat Downpipe (F Series M140i, M240i, 340i & 440i)
SKU: 55680590416

BMW B58 Super 5" CERAMIC COATED Sports Cat Downpipe (F Series M140i, M240i, 340i & 440i)

Sale price$222.75 Regular price$247.50
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

BMW B58 Super 5" CERAMIC COATED Sports Cat Downpipe (F Series M140i, M240i, 340i & 440i)Unlock the full potential of your BMW B58 engine with the Super 5" Ceramic Coated Sports Cat Downpipe engineered for F Series models including the M140i, M240i, 340i, and 440i. This premium downpipe features a massive 5" construction for maximum exhaust flow, improved turbo response, and enhanced performance, all while maintaining emissions compliance with a high flow 200 cell sports catalyst. The advanced ceramic coating not only offers a sleek, heat

Unlock the full potential of your BMW B58 engine with the Super 5" Ceramic Coated Sports Cat Downpipe – engineered for F Series models including the M140i, M240i, 340i, and 440i. This premium downpipe features a massive 5" construction for maximum exhaust flow, improved turbo response, and enhanced performance, all while maintaining emissions compliance with a high-flow 200-cell sports catalyst.

The advanced ceramic coating not only offers a sleek, heat-resistant finish but also significantly reduces under-bonnet temperatures for improved thermal efficiency. Precision-built for a direct fit, this high-quality upgrade is perfect for drivers seeking reliable power gains without compromising durability or daily drivability.


Key Features:

  • Large-bore 5" diameter for optimal exhaust flow
  • High-flow 200-cell sports catalytic converter
  • Heat-resistant ceramic coating for improved thermal efficiency
  • Enhanced turbo spool and throttle response
  • TIG-welded for strength and longevity
  • Direct-fit design for straightforward installation
  • Maintains emissions compliance for road use

Compatibility:

Fits BMW F Series models with the B58 Gen1 engine, including:

  • BMW F20 M140i
  • BMW F21 M140i
  • BMW F22 M240i
  • BMW F30 340i
  • BMW F31 340i
  • BMW F32 440i
  • BMW F33 440i
  • BMW F36 440i Gran Coupe

Ideal for tuned or performance-oriented setups, this downpipe is a must-have upgrade for drivers looking to extract more power and sound from their B58-powered BMW.

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: 55680590416

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4.7 ★★★★★
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Karen Moran
Lake Worth, US
★★★★★ 1
Too Cumbersome
Size: 6 Panel-119"W, Color: Black
Didn’t realize there were over 100 pieces to put this thing together. Had I been advised of that I would not have ordered this thing. Wayyyyy too much of a production to put it together. Nope. Returned.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
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LRL
Omaha, US
★★★★★ 3
Great Product, But Non-Existent Seller Support
Size: 6 Panel-119"W, Color: Black, Size: 6 Panel-119"W, Color: Black
The Good: Well Designed: Sturdy and aesthetically pleasing. Effective: Perfectly obstructs the afternoon sun glare from my monitor screens. Moderate Assembly: Straightforward and easy for the most part. The Bad: Defective Part: One crossbar end was missing threads, preventing the assembly of the sixth panel. Zero Communication: I emailed the seller as instructed and waited 8 days with no acknowledgment. Return Logistics: Amazon offered a return, but the box is heavy, and disassembly/repackaging would be a major task. Final Verdict I really like this product, but I’m deducting two stars for a total lack of customer service. I’ve decided to buy tools and fix it myself rather than deal with a heavy return. I hope the seller sees this and reaches out. The lesson learned is to check every part of a product before assembly.
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Reviewed in the United States on February 10, 2026
A
Verified Purchase
Andrea Jagarnauth
Alexandria, US
★★★★★ 5
This is definitely a buy
Size: 6 Panel-119"W, Color: Black
Excellent product.Good Quality.Very sturdy .Easy to assemble.Provide privacy and keeps the light out just what I needed.I am happy to recommend this divider .Do not hesitate to buy
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Reviewed in the United States on August 7, 2024
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Shae G
Omaha, US
★★★★★ 5
Clean Look, Sturdy — can’t ask for more!
Size: 6 Panel-119"W, Color: Grey, Size: 6 Panel-119"W, Color: Grey
Really like how it folds so I can create kind of a doorway with two of these. Pretty easy to assemble and has an uncluttered clean look due to the smooth fabric and nice color. Oh and it’s sturdy enough for pets.
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Reviewed in the United States on September 9, 2024
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Verified Purchase
Nicole Howland
Omaha, US
★★★★★ 5
Lovely, but lightweight
Color: Brown, Size: 8 Panel
Attractive and does what I needed, but is very lightweight, so must be secured.
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Reviewed in the United States on June 6, 2025

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