Dinan Cold Air Intake & Induction Kit – BMW E46 3 Series 330i 330Ci 330xi (M54 3.0) 2001-2006 | High-Flow Performance Air Intake System/CAI Airbox & Filter Housing Upgrade

Unlock effortless breathing and real-world performance on your BMW E46 330i, 330Ci and 330xi with this Dinan high-flow induction upgrade. Designed specifically for the M54 3.0 engine, this premium air intake solution delivers a cooler, denser charge and reduced restriction for sharper response and stronger pull across the rev range.

We run this setup on our own builds and customers love the step up in drivability. Expect a crisper pedal, a more eager top end and a refined, OEM-plus feel that keeps daily manners intact.

• Proven gains of up to +11 hp at 6500 rpm and +9 lb ft at 6500 rpm
• Noticeably quicker throttle pickup and smoother acceleration
• Precision-moulded lid increases plenum volume and houses the included performance filter element
• Low-restriction inlet tract for improved airflow to the engine
• Composite construction helps combat heat soak under the bonnet
• Gasketed seal for excellent pressure retention and minimal heat bleed
• Additional front snorkel draws fresh air from the factory brake cooling channel for a true cold-feed effect

Why enthusiasts choose this upgrade

This is not a noisy, generic cone filter. It is a purpose-built air induction system that retains an OEM-style housing for reliability while opening up flow where the M54B30 needs it most. The result is a cleaner, denser charge and consistent performance during spirited driving.

Vehicle compatibility

BMW 3 Series E46 2001 to 2006: 330i, 330Ci, 330xi with M54 3.0 petrol engine.

Ideal search terms

BMW E46 330 intake upgrade, E46 330i cold air kit, 330Ci induction kit, BMW 3 Series 330xi air intake, M54 3.0 performance induction, air filter housing upgrade, bolt-on intake BMW 330, UK performance parts for E46, high flow air intake 330i.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. For a fitting quote or booking, email info@mjmodifications.co.uk. We have installed this kit many times and are happy to advise on setup and maintenance.

In the box

• High-flow filter element
• Moulded upper housing cover with increased volume
• Fresh-air feed duct and associated hardware

Buy with confidence

Trusted brand quality, excellent fit, tangible gains and an OEM-grade look. A top choice for anyone seeking a simple, effective breathing upgrade for the E46 330 without compromising everyday refinement.