Pipercross Viper Induction Kit / Cold Air Intake for BMW E46 3 Series 320i 323i 325i 328i - Carbon Fibre Heat Shield, High-Flow Performance Foam Filter, Direct Airbox Replacement

Pipercross Viper Intake System for BMW 3 Series E46 320i 323i 325i 328i

Unlock sharper throttle response and cooler charge temperatures on your BMW E46 six-cylinder with the Pipercross Viper intake system. This carbon fibre enclosed cone setup replaces the restrictive factory airbox, delivering a direct fresh air feed and a high-flow triple-layer foam element for serious breathing gains on 320i, 323i, 325i and 328i models.

Main reasons to upgrade

• Real-world increase in airflow for stronger mid-range and top-end pull
• Carbon fibre enclosure with thermal shielding to combat heat soak
• Reticulated triple-foam element for high flow and excellent filtration
• Over 30 percent more flow than a standard paper element
• Designed to reduce intake temperatures with a dedicated cold feed
• Reusable and easy to clean for low running costs
• Lifetime warranty for road use
• Complete kit with brackets, couplers and clamps for a straightforward install

Race-bred engineering you can feel

The Viper’s carbon fibre canister acts as a heat barrier, helping the engine ingest denser air during spirited road driving and on track days. The sealed design and cold air feed promote consistent intake temps, supporting reliable performance when the engine bay gets hot.

Advanced foam technology

Pipercross uses a multi-stage foam construction that maintains high flow while trapping dust and debris. The progressive layers capture particles of varying sizes so the filter keeps breathing even as mileage builds, outlasting thin paper and cotton alternatives.

• Outer layer - coarse foam to catch larger contaminants
• Middle layer - medium-density foam for the bulk of the filtration
• Inner layer - fine foam for the final clean air to your engine

The result is strong and sustained airflow, dependable engine protection and longer service intervals compared to traditional media.

Compatibility

Fits BMW 3 Series E46 petrol models:

• 320i
• 323i
• 325i
• 328i

In the box

• Pipercross Viper carbon fibre enclosed intake assembly
• High-flow multi-layer foam filter element
• Mounting hardware and hose adaptors
• Fitting guide

Tested by MJ Modifications

We have installed this Viper kit on our own E46 builds and for customer cars. Feedback has been consistently positive for fit, finish and performance. It is a proven upgrade for owners seeking a quality carbon fibre intake with genuine gains and long-term reliability.

Professional fitting available

Want it installed for you. Book your car in with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Buyer benefits at a glance

• Direct swap for the OEM airbox with no cutting required
• Cool air feed and carbon enclosure to help stabilise inlet temps
• Reusable foam filter for long-term savings
• Road-legal performance upgrade backed by a lifetime warranty
• Ideal for E46 tuning, remaps and supporting bolt-ons

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