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BLOX Racing 2.5" Performance Filter Kit - Includes Composite velocity stack, 5" filter, and silicone hose kit - Black is the BLOX Racing product identified by manufacturer part number BXIM-00321. Use the complete part number when checking application, finish, size and pack quantity.
Verified product identity
- Manufacturer: BLOX Racing
- Manufacturer part number: BXIM-00321
- Supplier catalogue description: 2.5" Performance Filter Kit - Includes Composite velocity stack, 5" filter, and silicone hose kit
- Supplier catalogue family: AIR FILTERS & FILTER KITS
- Listed shipping weight: 2.5 lb
- Listed package dimensions: 8x8x8 in
Application and specification note
5" Short Filter
Product details
The BLOX Racing performance air filter kit features its "Shorty" 5" height performance air filter, a composite velocity stack, and silicone hose coupler with clamps. Kits are dyno-proven to increase horsepower and torque.
The dry element filter prevents any sensors from becoming soaked with oil that is normally associated with wet filter brands.
BLOX Racing composite velocity stacks are injection-molded from PA66 glass-filled nylon. Composite significantly reduces the amount of heat soak absorbed by the velocity stack and then transferred to the air. BLOX Racing velocity stacks incorporate race proven intake technology into a product designed for daily driven vehicles. Velocity stacks are designed to optimize and maximize air flow rates entering the induction system. Ideal for naturally aspirated and turbocharged applications.
Air Filter Kit Specs
- 5" height "shorty" dry filter
- Composite v-stack made from injection molded PA66 nylon
- Black color velocity stack
Red color only available in 3.5" kit - Outer diameter 6"
- Neck diameter options: 2.5", 3.0", 3.5", 4.0"
Before ordering
Match the full SKU, dimensions, thread or bore size, finish, vehicle application and pack quantity to the intended installation. Where an application is vehicle-specific, confirm model year, engine, transmission, body style and any stated exclusions. Universal does not mean suitable for every installation; available space, interfaces and supporting components still require checking.
Installation and use
Follow current manufacturer and vehicle service information. Performance, braking, suspension, fuel, steering and safety-related components should be installed and checked by a suitably experienced person. Confirm required companion parts, settings, clearances and local road-use requirements before installation.
Evidence record
Identity and supplier catalogue details were reconciled by exact part number BXIM-00321 against the supplied BLOX Racing 2026 price workbook and/or official Shopify-format supplier data file on 30 August 2026. UK VAT-inclusive retail, current stock, media rights, structured vehicle fitment and market-specific approval remain separate verification gates unless explicitly stated above.
Dispatch times vary depending on product availability. Available-to-order items may have extended lead times; contact us before ordering if timing is important. Returns are subject to our Returns Policy. Cancellation exceptions may apply to genuinely made-to-order or clearly personalised goods. Electrical or special-order status alone does not exclude cancellation. Your rights for faulty, incorrect or misdescribed goods remain unaffected. See our Returns Policy for details.
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