Dinan Carbon Fibre (Carbon Fiber) Cold Air Intake / Induction Kit – BMW B48 230i 330i 430i G20/G22/G42 2.0T | High-Flow Semi-Open Carbon Airbox Upgrade for BMW 2 Series, 3 Series, 4 Series x30i

Dinan Carbon Fibre Induction System for BMW G20, G22, G42 230i, 330i, 430i (B48 x30i)

Give your B48-powered BMW a serious breathing upgrade with Dinan’s premium carbon fibre induction system. This performance airbox and high-flow filter package elevates response, adds an addictive turbo soundtrack and looks sensational under the bonnet. It is an ideal first step for enthusiasts who want sharper throttle feel today and a freer-flowing setup for future power goals.

Proven airflow gains are the headline. The Dinan assembly outflows the factory airbox by 58% or more thanks to a re-engineered lower housing, an enlarged carbon chamber around 60% bigger than OE and a bespoke filter that offers approximately 40% more surface area. Side feed openings work together with the front duct to retain cool charge temperatures while delivering that purposeful induction note enthusiasts love.

At MJ Modifications we install and run these systems on customer builds and our own cars. Feedback is consistently excellent. Owners comment on the quality, the richer intake tone, the pronounced turbo spool and the crisper on-road response. It is a high-quality upgrade that removes a key restriction in the intake path and sets the foundation for tuning later on.

Highlights

• Substantial flow increase over the stock airbox for easier breathing and improved drivability
• Large-volume carbon fibre airbox, approximately 60% larger than OE
• High-surface-area filter, about 40% more area than stock, from roughly 82 in² to 115 in²
• Semi-open design with side inlets and front duct feed for performance sound without compromising intake air temperature
• Enhanced induction acoustics, with more audible turbo spool and valve activity
• Premium carbon weave for a striking, OEM-plus engine bay finish
• Direct replacement layout designed to work with or without the factory engine bay brace
• Straightforward fitment suitable for daily-driven and modified vehicles

Why it belongs on your BMW 230i, 330i or 430i

The standard B48 intake is quiet and restrictive. Dinan rebuilds the lower housing and maximises the available space to feed your turbocharger properly. The result is a sharper, more engaging drive and the motorsport-inspired sound many owners want. Real-world testing showed no notable rise in turbo inlet temperatures in typical use cases, including multi-gear pulls, steady-state cruising and 0 to 100 mph runs. On a stock car you will feel the response and hear the difference. On cars with future upgrades, removing this bottleneck lets you pursue higher power with confidence.

Compatibility

BMW G20 330i, G22 430i, G42 230i with the 2.0 B48 x30i engine. Suitable for vehicles with or without the OEM strut brace.

Professional fitting

Installation is straightforward, and we recommend professional fitting for the best result. MJ Modifications, based in Warwickshire, can supply and install this Dinan intake. Request a fitting quote at info@mjmodifications.co.uk.

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