BMS Single Turbo Air Filter, 4inch inlet

Compact high-temperature filter for single turbo and tight engine bay setups

The BMS Silicone Single Turbo Filter is designed specifically for applications where space is limited and a traditional cone filter simply does not fit. This makes it an ideal solution for single turbo BMW builds and other custom setups with tight engine bay packaging.

Constructed from high-temperature automotive silicone, this filter is designed to handle extreme heat when mounted directly on the turbo inlet. Unlike typical urethane filters that can degrade or fail over time, this design is built for long-term durability in demanding conditions.

The filter also features increased surface area compared to many compact alternatives, helping support higher power levels and improved airflow efficiency. The internal design helps reduce turbulence, contributing to smoother airflow into the turbo. :contentReference[oaicite:0]{index=0}

• High-temperature silicone construction
• Safe for direct turbo mounting
• Designed for 4 inch turbo inlet connections
• Ideal for single turbo builds
• Larger surface area than typical compact filters
• Optimized design reduces airflow turbulence
• Cleanable and reusable
• Available in standard and shorty versions for tight spaces

The filter is available in a standard height version as well as a shorter “shorty” version, making it easier to fit in tight engine bays where clearance is limited. :contentReference[oaicite:1]{index=1}

Example applications:

BMW N54 single turbo builds
BMW N55 single turbo builds
BMW B58 single turbo builds
Universal 4 inch turbo inlet applications