DINAN – Cold Air Intake – BMW 230i / 330i / 430i (19–24)

Looking for more performance and sound for less cost? The all-new Dinan PEX Cold Air Intake for the G2x / G4x x30i platforms delivers the same flow and auditory excitement as its carbon-fibre sibling—just with a more understated look and a lower price point.

In factory form, the B46 / B48-powered 230i, 330i, and 430i feature a basic, quiet, and restrictive airbox that limits both performance and engagement. Dinan addresses these shortcomings with a semi-open airbox design that flows 58% more air than stock, producing sharper throttle response, improved turbo efficiency, and a sportier induction sound.

The redesigned lower airbox has been completely re-engineered and enlarged to maximize space within the engine bay. This allows for a 40% larger high-flow filter and a 60% increase in total airbox volume, resulting in a more responsive and capable intake system—especially valuable for vehicles running upgraded turbos or fueling systems. A carefully tested secondary air inlet ensures improved airflow without introducing unwanted heat, providing consistent performance across all driving conditions.

While not made of carbon fibre, the high heat-deflection PEX construction maintains an OEM-like appearance that integrates seamlessly into the factory bay. It’s a smart, economical solution for enthusiasts who want the Dinan experience—performance, sound, and reliability—without the premium carbon price tag.

Features & Benefits:

• Outflows factory intake by 58% or more for improved turbo efficiency

• 60% larger airbox volume for increased breathing capacity

• 40% larger high-flow filter area (82 in² → 115 in²) for optimal flow

• Semi-open design delivers a louder, more aggressive turbo sound

• High heat-deflection PEX construction for OEM-like durability and fitment

• Improved throttle response and reduced turbo lag

• Compatible with all G2x / G4x x30i models with or without factory bracing

• Quick and easy installation

Fitment Table: