$595.00 USD
$595.00 USD












The MMX Performance N55 intake kit removes the inherent restriction in the OE airbox setup, unlocking the breathing capability the N55 single-turbo straight-six is capable of when tuned beyond stock. It is a complete, drop-in replacement designed for F-chassis N55-powered cars including the M135i, M235i, 335i and 435i.
The aluminum intake pipework is mandrel-bent from a single piece for unobstructed airflow into the turbo, and is paired with a dual-entry MMX Performance cotton gauze air filter for a marked improvement in induction noise alongside excellent filtration. The OEM cold-air feed location is retained and attaches to a new MMX lower base which doubles as an effective heat shield around the cone filter element, ensuring the intake is fed cool ambient air rather than heat-soaked engine bay temperature.
Behind the wheel that translates to crisper throttle response, a richer induction note under load, and a meaningful airflow improvement. It is one of the most cost-effective hardware upgrades on this engine.
The main induction pipework is finished in MMX's proprietary anodized black with detailed billet CNC-machined rubber-mounted fixing points that allow for engine movement and prevent unnecessary NVH. Installation takes minutes, requires no cutting or permanent modification, and is fully reversible.
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$595.00 USD
$595.00 USD
This product can expose you to chemicals such as lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
For a complete list of chemicals known to cause harm, visit https://www.p65warnings.ca.gov/chemicals.
Under the federal Clean Air Act (42 U.S.C. §7522(a)(3)), it is illegal to manufacture, sell, install, or use any part that defeats or alters a motor vehicle’s emission control system for use on public roads. Unless a product has received an Executive Order (EO) from the California Air Resources Board (CARB), it is not legal for use or installation on any pollution-controlled vehicle driven on public highways.
Some states have CARB-equivalent or independent emissions laws. Customers are responsible for verifying local regulations before purchasing or installing emissions-related products.
All performance, racing, or competition parts sold by this company are intended solely for off-road, closed-course, or competition use on vehicles that are never registered or used on public highways.
Kies Motorsports, LLC sells and markets these products for lawful use only. We do not condone or authorize the use of emission-control defeat devices or any modification that violates the Clean Air Act or state regulations.