In the pursuit of being everything to everyone at a price that won’t break the bank, the 230i/330i/430i has unfortunately become a bit bland. While it’s practical, it lacks the character that many of us crave, both inside and out. Take the stock air box, for instance. It’s designed to be functional but ends up looking utilitarian and uninspiring. Wrapped in what seems like unfinished braces, it houses a basic panel filter along with an intake resonator that works to silence the turbo and intake sounds—sounds that performance enthusiasts truly enjoy. Essentially, BMW has provided 230i/330i/430i owners with an air box that flows adequately but could be so much better, all while keeping things quiet.

Enter the Dinan carbon fiber intake, which addresses these shortcomings head-on. This semi-open intake system allows for a whopping 58% more airflow compared to the stock setup, resulting in improved throttle response and removing any potential obstacles for those looking to build a high-powered setup with upgraded turbos and fuel systems. Plus, the Dinan kit adds a sporty, aggressive look with its stunning carbon fiber design and a more thrilling sound thanks to the removal of the intake resonator.

To achieve the impressive airflow that sets the Dinan intake apart, the entire lower box has been thoughtfully redesigned and enlarged, maximizing the space available in the engine bay. This clever engineering accommodates a custom, free-flowing filter that is 40% larger than stock, allowing for optimal airflow. Dinan also recognized the need for a secondary inlet to fully utilize the increased air box volume and filter surface area. Through extensive testing of various shapes, sizes, and locations for this inlet, they ensured that it wouldn’t lead to any unwanted side effects, like rising air temperatures. The final design features patterned openings on the opposite side of the engine, striking a perfect balance between added volume and maintaining ideal turbo inlet temperatures, regardless of the testing conditions.

While the extra airflow may not translate to a significant power boost for stock or lightly modified vehicles, the Dinan intake system definitely raises the potential power ceiling for those aiming to build a more robust setup with turbo and fuel upgrades. It allows you to maximize your results without worrying about the intake system holding you back. And for those who appreciate the sound of their turbo and blow-off valve, the secondary air inlets make the intake system more audible, creating a noticeable contrast to Dinan’s traditional fully sealed systems where induction noise tends to be less pronounced. On top of all that, the stunning carbon fiber construction enhances the under-the-hood aesthetics, making it a worthwhile investment.

• Outflows factory intake by 58% or more.
• Enjoyably louder, sportier sound.
• Beautifully crafted carbon fiber construction (lid and tube).
• Improved throttle response.
• Larger volume air box (60% larger than stock).
• 40% increase in filter area for optimum flow.
• Compatible with all G2x x30i's with and without factory bracing.
• Quick and easy installation.

• BMW 230i 2019-2021
• BMW 330i 2019-2022
• BMW 430i 2019-2022