All Direnza Cold Air Induction Systems are supplied with a high quality, cone style air filter; designed to replace the OEM airbox, offering more surface area compared to the standard filter. Direnza air filters are manufactured from premium grade, washable cotton, ensuring long-lasting performance enhancements.

Designed in-house by Direnza engineers, our Cold Air Induction Kits reduce blockages and significantly enhance air flow into the engine compared with stock induction arrangements, boosting your car’s soundtrack and performance.

Heat-resistant silicone hoses are supplied with every Direnza Cold Air Induction Kit. An often-overlooked item, our easy-fit silicones are layered for extra durability, their 5mm wall consisting of four polyester layers finished with jet black pigment.

• Designed to replace the OE setup, providing up to 50% more filter surface area to help maximise capacity
• Engineered to help the 3.0 diesel engine breathe easier and improve throttle response from your BMW
• Gains in power and torque are noticeable over a larger RPM range
• A straightforward way to give your 335D a sporty, performance soundtrack
• Complete kit includes a powder coated heat-shield & high quality cotton filter