SKU: 16889335519

Dinan Carbon Fiber Cold Air Intake For 2015-2020 BMW M240I/ 340I/ 440

Sale price$263.23 Regular price$292.48
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Description

Dinan Carbon Fiber Cold Air Intake For 2015-2020 BMW M240I/ 340I/ 440Overview: "Following in the footsteps of the immensely popular and heralded intake for the BMW N55 engine, the next generation of 6 cylinder intake takes the same path to success. Improve upon the factory design by increasing flow via a larger airbox and filter element thereby improving throttle response and lessening the strain on the turbocharger for maximum efficiency. While box and filter enlargement and redesign are major factors in ultimately

Overview:

"Following in the footsteps of the immensely popular and heralded intake for the BMW N55 engine, the next generation of 6 cylinder intake takes the same path to success. Improve upon the factory design by increasing flow via a larger airbox and filter element thereby improving throttle response and lessening the strain on the turbocharger for maximum efficiency. While box and filter enlargement and redesign are major factors in ultimately producing a more potent intake they are not the only variables in creating a more efficient design either. The devil is in the details which is where Dinan thrives. Coupled with maintaining Dinan's standard practice of utilizing a sealed system to ensure as much cold outside air as possible is employed Dinan engineers focused their attention on the intake pipe itself where numerous improvements could be made. In factory configuration, the intake tube comes complete with baffling and a small Helmholtz chamber to reduce unwanted sound. As a byproduct, these features also cause a more turbulent airflow path that robs the factory system of potential power. These 2 specific details are diametrically opposed to our intended market's desires so the removal of these features was paramount. Through numerous iterations, a carbon fiber intake tube was developed that eliminated flow disruptions and allowed the natural sound of an unimpeded intake tract to sing. All told this thorough methodology of design allows the Dinan carbon fiber cold air intake for the B58 engine to elicit gains of 15 HP and 13 TRQ 6000 RPM on a completely stock vehicle. An impressive feat on today's turbocharged engines.

Features:

  • More Power: + 15 HP @ 6000 RPM & + 13 lb-ft @ 6000 RPM (+ 13 WHP & + 11 WTQ) without additional modifications
  • Sportier Sound
  • Improved throttle response
  • Larger volume air box (30% larger than stock) that completely seals for maximum insulation from power robbing heat
  • 34% increase in filter area (stock: 76.3in², Dinan: 102.1in²) for optimum flow
  • Optimized carbon fiber intake tube 
  • Free flowing injection molded Air Mass Meter housing (8% larger then stock)
  • Quick and easy installation

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Air Box Included Yes
Brand Dinan
Dinan Point Value 3
Emission Code 4
Height 10
Labor Time (Hours) 1
Length 24
Max HP Gain 15 @ 6000 RPM
Max Torque (lb-ft) Gain 13 @ 6000 RPM
Product Type Cold Air Intake
Warning California Proposition 65
Weight 8
Width 18
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: 16889335519

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skadoosh
Charlottesville, US
★★★★★ 5
worth it!
beautiful time piece. value for price is definitely evident especially considering how much cheaper it is compared to the blue dial version, granted the blue dial looks stunning but for the difference in price for prettty much the same thing. the choice is clear
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Reviewed in the United States on July 27, 2020
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Dallas, US
★★★★★ 5
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Reviewed in the United States on August 30, 2023
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Andre S. Palomo
Chelsea, US
★★★★★ 5
Great watch!
Style: Dress, Color: Gold Tone Stainless Steel
BEAUTIFUL WATCH and excellent horology you would expect from Citizen.
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Reviewed in the United States on April 10, 2026
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Nicole Palochik
Omaha, US
★★★★★ 5
Great Buy
Style: Dress, Color: Two-Tone Gold/ Blue Dial, Style: Dress, Color: Two-Tone Gold/ Blue Dial
Stunning watch!! Purchased for my boyfriend for his birthday. He is a bigger guy with a larger arm/wrist so the size of this watch looks great on him. He receives a ton of compliments on it, and it still catches my eye every time he wears it. Decent weight without being too heavy (he reports). Perfect to wear as a daily watch or dress up with
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Reviewed in the United States on February 6, 2026
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Patrick Caputo
Phoenix, US
★★★★★ 5
Quality and “Executive” Look
Style: Dress, Color: Two-Tone Gold/ Blue Dial
Quality you come to expect from Citizen. Looks and feels like a more expensive watch without busting your wallet. I get the most compliments on this watch over any other I own!
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Reviewed in the United States on April 18, 2025

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