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Description
Dinan Semi-Open Intake - BMW / F-Series / B46 / B48Looking for more sound than what can be attained from the standard Dinan closed box intake for F2x F3x B46 B48 powered vehicles and don't want to sacrifice all the performance gains or the beautifully crafted carbon fiber design in the process? This semi open variant of the same intake meets those demands using a revised lid with an additional auditory port so those intoxicating turbo noises can be more easily heard. Beyond the additional sound
Looking for more sound than what can be attained from the standard Dinan closed box intake for F2x/F3x B46/B48 powered vehicles and don't want to sacrifice all the performance gains or the beautifully crafted carbon fiber design in the process? This semi-open variant of the same intake meets those demands using a revised lid with an additional auditory port so those intoxicating turbo noises can be more easily heard.
Beyond the additional sound opening the semi-open intake takes the same path to success as its closed box counterpart. 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 a major factor 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. 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 which robs the factory system of potential power. These two 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 intake for the B46/B48 engine to elicit gains of 6 HP and 6 TRQ at 5000 RPM on a completely stock vehicle.
Not to be outdone by the performance side of the equation, the B46/B48 intake also is completely made up of carbon fiber unlike 4-cylinder intakes of previous generations where a mix of materials were used. Not only is the intake completely carbon construction but the quality of the material has been improved as well. While looks are surely important, and this piece has that department covered in spades, the improved construction and coating also guarantees that the appearance of the engine bay with the Dinan intake will not be marred over time. Built to elicit a more pronounced sound, imbue the engine bay with some carbon class, perform, and last the duration-- the Dinan semi-open B46/B48 carbon fiber intake is a modification that is a must for any enthusiast that places sound atop their requirements list.
Features:
- More Power: + 6 HP @ 5000 RPM & + 6 lb-ft @ 5000 RPM (+ 5 WHP & + 5 WTQ) without additional modifications
- A pronounced sporty sound courtesy of a semi-open design
- 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 (ove 20% larger then stock)
- Quick and easy installation
- 50 State Emissions Legal (partial application list): CARB EO D-176-56 (2019-21 F2x/F3x 230i/330i/430i Only)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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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
4.1 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Grandkids love the book and especially the flashlight.
Format: Board book
All of Eric Carle's books are great. My 2 1/2 yr old granddaughter is especially interested in flashlights these days, but household flashlights are too bright for kids who tend to flash them in people's faces. This is a low-beam flashlight that compliments a fun book and she loves them both.
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Reviewed in the United States on December 28, 2020
★★★★★ 5
Good book
Format: Board book
Cute story book my granddaughters love to read before bed.
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Reviewed in the United States on September 8, 2025
★★★★★ 5
We love reading this book
Format: Board book
Such a cute interactive book. We love reading books right before bedtime. Your kids gonna love it.
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Reviewed in the United States on August 28, 2025
★★★★★ 5
Fun interactive pop-up book
Format: Board book
My 2-year-old loves fireflies, thanks to Grandma teaching him to “catch and release”. She then gave him this book to further encourage his fascination with fireflies. The book is a pop-up book and each pop-up has a round hole to shine the included flashlight through to make the fireflies in the book light up. To add to the fun, there are buttons to push to make sounds to accompany the story. Too much fun! Saw this at the store at a higher price, found it here at a discount. Worth every penny!
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Reviewed in the United States on August 6, 2024
★★★★★ 5
Good
Format: Board book
Product came in time. It was a decent price and the kids loved it.
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Reviewed in the United States on January 27, 2025