BLOX Racing 4inch Silicone Intake Hose Kit

The BLOX Racing silicone hose kits are ideal when two components need to be adjoined together and welding is not a viable option. Available in 2.5″, 3″, 3.5″, and 4″ hose diameters.

Key Features

• 4-Ply Polyester Reinforcement: Handles up to 28 PSI boost without bursting in high-demand turbo configurations.
• 4-ply reinforced silicone rated for 350F continuous and 28 PSI maximum pressure.
• High-Temperature Silicone: Rated for 350F continuous operation to prevent heat-related failures in crowded engine compartments.
• Complete Hose Kit: Contains one 4″ 90 elbow, one 4″ 45 elbow, two 4″ x 2.5″ straights, one 4″ to 3″ reducer for full intake plumbing.
• Flexible Routing: Bends without kinking to fit around K-series engines and aftermarket turbo manifolds.
• Compatible with stainless T-bolt clamps sized 4″ ID.

Fitment

Specifications

What’s Included

One new BLOX Racing product in the exact configuration identified by manufacturer part number BXFL-00252. Only components expressly stated for this exact part number are included.

About BLOX Racing

BLOX Racing develops performance intake, exhaust, fuel, engine, drivetrain, suspension, wheel-hardware, and interior components for street and competition applications. Selection remains exact-part-number and exact-application specific.

Related BLOX Racing Products

• BLOX Racing Performance Filter Kit w/ 2.5inch Velocity Stack Air Filter and 2.5inch Silicone Hose
• BLOX Racing Performance Filter Kit w/ 3.0inch Velocity Stack Air Filter and 3.0inch Silicone Hose
• BLOX Racing Performance Filter Kit w/ 3.5inch Velocity Stack Black Filter and 3.5inch Silicone Hose

Browse the BLOX Racing collection for related performance components.

Frequently Asked Questions

Is this part tied to a specific vehicle?
No verified vehicle YMM is assigned. Select it by the exact dimensions, thread or bore, connection, quantity, material, and intended system function.

Does this include everything needed for installation?
Only the components expressly listed for this exact BLOX Racing part number are included. Gaskets, fluids, tuning, adapters, fasteners, wiring, tools, and companion parts may be required depending on the application.

Will tuning or calibration be required?
It may be required when airflow, fueling, boost, throttle control, emissions equipment, or engine management changes. Confirm the manufacturer requirements for the exact vehicle and combination before installation.

Installation Instructions

Follow the current BLOX Racing instructions and vehicle service information for this exact part number. Verify fitment and included components before disassembly, use the specified tools and torque values, check all clearances and connections, and inspect the installation before operation. Professional installation is recommended.