Dinan Carbon Fiber/Fibre Cold Air Intake Kit for BMW 335i & 335i xDrive E90 3 Series (2009-2010) - N54 3.0L Twin Turbo Performance Induction Upgrade

Carbon fibre induction system for BMW E90 335i and 335i xDrive 2009 to 2010

Transform the way your N54-powered 3 Series breathes. This Dinan carbon fibre induction upgrade feeds your twin turbo 3.0 litre straight six with a bigger volume of colder, denser air for stronger pull, faster throttle response and the addictive turbo intake sound enthusiasts love. It looks the part under the bonnet too, thanks to premium carbon weave and OE-quality fit.

Why enthusiasts choose this intake

• Colder charge temps by up to 22°C compared with the factory setup for more repeatable performance on road and track
• Noticeable gains through the midrange and sustained power towards the redline
• Deepened induction note and enhanced turbo spool without compromising daily drivability
• Lightweight carbon fibre construction for strength, heat resistance and a high-end engine bay finish
• Direct bolt-on replacement for the original airbox lid with no cutting required

How it delivers real results

Dinan replaces the stock airbox cover and adds a secondary carbon duct that draws fresh air from the lower grille area. A large conical filter sits inside a heat shield to keep engine bay heat away. The smoother airflow path and colder intake charge help your N54 deliver consistent power, especially on tuned cars.

Verified performance figures

Measured results vary with supporting hardware and software. Dinan testing shows the following improvements:

• With Stage 3 calibration, Dinan intercooler and free-flow exhaust: +14 hp at 6000 rpm and +16 ft lb at 3400 rpm
• With Stage 2 calibration and free-flow exhaust: +12 hp and +13 ft lb
• With Stage 1 calibration and free-flow exhaust: +9 hp and +10 ft lb
• On an otherwise standard car: +5 hp and +6 ft lb

Performance software is strongly recommended to maximise the intake’s potential.

What is included

• Hand-finished carbon fibre replacement airbox cover
• Additional carbon intake tube that sources air from the lower grille
• High-flow cone filter with integrated heat shielding

Compatibility

• BMW 3 Series E90 saloon: 335i rear-wheel drive and 335i xDrive all-wheel drive
• Model years 2009 to 2010
• N54 3.0 litre twin turbo petrol engine

Fitting and support

We run this intake on our own builds and on customer cars. Feedback has been outstanding for fit, finish and on-road gains. For professional installation, speak to MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Search terms customers use

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Note: Results depend on vehicle condition, ambient weather and supporting modifications.