Fitment Information
- BMW M240i F22 Coupe 3.0L Turbo B58 (2017, 2018, 2019, 2020, 2021)
- BMW M240i F23 Convertible 3.0L Turbo B58 (2017, 2018, 2019, 2020, 2021)
- BMW 340i F30 Sedan 3.0L Turbo B58 (2016, 2017, 2018)
- BMW 340i GT F34 Gran Turismo 3.0L Turbo B58 (2017, 2018, 2019)
- BMW 440i F32 Coupe 3.0L Turbo B58 (2017, 2018, 2019, 2020)
- BMW 440i F33 Convertible 3.0L Turbo B58 (2017, 2018, 2019, 2020)
- BMW 440i F36 Gran Coupe 3.0L Turbo B58 (2017, 2018, 2019, 2020)
Emissions Compliance
- This part does not have a CARB EO # and cannot be sold or shipped to California.
Specs & Features
- More Power: + 15 HP @ 6000 RPM & + 13 lb-ft @ 6000 RPM (+ 13 WHP & + 11 WTQ) without additional modifications
- Semi-Open: A pronounced sporty sound courtesy of a semi-open design
- Closed: Sportier Sound
- Improved throttle response
- Larger volume air box (30% larger than stock) for increased breathability
- 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
- Pending CARB Approval
Product Description
Upgrade your BMW B58-powered M240i, 340i, or 440i with the Dinan Carbon Fiber Cold Air Intake System, engineered to improve airflow, enhance throttle response, and elevate your driving experience. Available in Closed and Semi-Open configurations, this intake system allows you to choose between maximum thermal efficiency or a more aggressive induction sound without compromising performance.
Building on the success of Dinan's renowned BMW intake systems, this next-generation design replaces the restrictive factory intake with a significantly larger carbon fiber airbox, high-flow filter, optimized intake tube, and free-flowing Air Mass Meter housing. The result is smoother airflow, reduced turbocharger strain, and improved engine efficiency for consistent performance on both stock and modified vehicles.
The redesigned intake system produces gains of up to 15 HP and 13 lb-ft of torque on a completely stock vehicle while improving throttle response and delivering a more engaging driving experience. A 30% larger airbox and 34% greater filter surface area provide increased airflow, while the optimized carbon fiber intake tube eliminates the factory baffling and Helmholtz resonator that disrupt airflow and suppress turbo sound. The enlarged injection-molded Air Mass Meter housing, approximately 8% larger than stock, further enhances intake efficiency.
Crafted entirely from premium carbon fiber, the intake not only offers exceptional durability and heat resistance but also provides a refined, high-end appearance that enhances any engine bay. The advanced carbon fiber construction and protective finish are designed to maintain their appearance over years of use while delivering OEM-quality fitment and straightforward installation.

More in this category
BMW 340i Parts
BMW 440i Parts
BMW M240i Parts
Dinan Cold Air Intake
Reviews on this product
Redline360 is an Authorized Dealer so we only sell authentic and genuine parts and accessories.
Order updates, tracking and info
Our goal is your complete satisfaction. Upon ordering, you will receive an email confirmation of your order along with your invoice. You will be able to log into our website 24/7 to check on your order at any time. Your order is processed Monday through Friday from 8am to 6pm PST as soon as it is placed. Once your order ships, we will email you a tracking number so you can track your package.
Protect your purchase
Redline360 offers our customers piece of mind! We have partned with Extend to offer you Extend Product Protection and Extend Shipping Protection. Read about each protection that Extend offers to Redline360 customers!
Multiple distribution points ready to serve you!
We ship from multiple locations around the United States so you receive your part as quick as possible. Not every warehouse stocks all the same parts, so the closest warehouse to you that has the part in stock is where your order will ship from. We ship from California, Nevada, Indiana, Michigan, Florida, Texas and Pennsylvania.
Secure Ordering
We take security seriously! We are never exposed to your credit card information, and it's never stored. Credit card transactions go through the credit card processor directly. We also offer various other payment methods such as PayPal, Affirm Financing (Pay over time), Amazon Pay, Apple Pay and more!
Any non CARB compliant items can not ship California. We will notify you if we have to cancel your order.
Some products may be subject to local rules, laws and regulations in certain areas. Always check your local laws to determine legal restrictions. We are not responsible if you buy a product that is not legal in your area.
For items that have free shipping, free shipping only applies to the lower 48 states.
Questions? Contact us.
Actual item may vary from picture