What Are Silicone Hoses?
Silicone hoses are high-performance flexible connectors for air and fluid connctions. Mostly used for coolant, intake or intercoolers in engines. Especially in automotive, aeromotive and motorsport applications. Unlike conventional rubber hoses, they are made from advanced silicone, reinforced with multiple layers of textile fabric, providing excellent strength, flexibility, and durability.
One of the key advantages of silicone hoses is their ability to withstand extreme temperatures without becoming brittle or degrading. This makes them ideal for performance engines and turbocharged applications, where heat and pressure are constant factors.
In automotive use, silicone hoses are found in intercooler systems, intake systems, coolant systems, and intake systems. Their smooth inner surface supports airflows, while the reinforced structure ensures reliable performance under boost pressure and heat.
Compared to standard rubber hoses, silicone hoses offer higher resistance to aging, and greater reliability under demanding conditions. That makes them a preferred choice for performance builds and professional use.
What’s the Difference between Silicone and Rubber Hoses?
Rubber hoses are widely used in standard production vehicles because they are cost-effective. However, they are not designed for high temperatures, boost pressure, or long-term performance use. Over time, rubber hoses tend to harden, crack, and lose reliability. To say that in a mean way, they are usually not lasting longer than the car's warranty :)
Some high performance stock cars do have rubber hoses with reinforcment layers to boost pressure use. But often single layers only.
Silicone hoses, on the other hand, are specifically developed for durability in performance applications. Their reinforced multi-layer construction allows them to maintain flexibility and stability even under high thermal and mechanical stress. Even oil or fuel dust do not harm silicone as much as rubber.
In turbocharged or supercharged engines, even high performance N/A engines, where airflow and system reliability are critical, silicone hoses offer clear advantages. They handle heat and pressure more effectively and provide a longer service life compared to conventional rubber hoses.
Why Do I Need Silicone Hoses for My Car?
If you’re running a performance engine, or planning to upgrade one, the OE rubber hoses are a critical part of the system.
Stock rubber hoses do leak or fail are often a weak point when it comes to heat, pressure, and long-term durability. Under demanding conditions, they can degrade or fail, leading to performance loss or potential damage.
Silicone hoses are designed to handle these challenges. They maintain their structure under pressure, ensure consistent airflow, and reduce the risk of failure in high-performance environments.
Another key advantage is durability. Unlike rubber, silicone does not become brittle or crack over the time. Over the 20 years BOOST products is in the business, we never experienced any failure due to aging at silicone hoses. But lot's of failures of rubber hoses.
For both enthusiasts and professional builders, upgrading to silicone hoses is not just about performance, it’s about confidence and reliability.
Why BOOST Products is the Best Choice for Silicone Hoses
When it comes to performance parts, reliability matters.
BOOST Products focuses on delivering silicone hoses designed for real-world conditions. Instead of prioritizing low cost, the focus is on consistent performance, durability, and a long-term reliability.
Constant quality control and internal product checks are mandetory in the BOOST Products portfolio.
BOOST Products is supplying certified aviation aircraft and engine builders as well as OEM manufacturers, well named race teams and race car manufacturers as well as critical industrie applications.
With a silicone hose failure in racing application you could loose the race. With a hose failure in a plane you could loose your life!
BOOST Products is the only manufacturer following the same quality standards which count in aviation, for motorsport hoses.
What Makes BOOST Silicone Hoses Different?
To ensure consistent quality, each production batch is tested under controlled conditions following aviation standards. This guarantees reliable performance across all products.
In addition, BOOST Products offers batch traceability via QR code, allowing each hose to be linked to its batch based testing protocols where you can see testing requirements and results.
BOOST Products is providing a level of transparency that sets us apart in the performance aftermarket.
What Types of Silicone Hoses and Sizes Are Available?
Silicone hoses and related components come in various shapes, a wide range of sizes and designs to suit different automotive applications.
Straight hoses & couplers are used to connect pipes, commonly in intercooler and intake systems.
Reducers & reducing elbows allow connections between different diameters.
Elbows & cobra head elbows are used to route hose-lines and intakes around obstacles.
Hump hoses help absorb movement and vibrations in the piping system.
T-hoses do offer an outlet for vales (e.g. blow off valves) or regulators in main lines.
Vacuum hoses are designed for control systems, sensor and vacuum lines.
Quick taps are aluminum adapters for connections/outlets from main line hoses for valves, sensors or regulators.
Blanking caps are used to close unused ports and outlets.
Silicone tape is used for sealing, insulation, or quick repairs.
What's important to know about Silicone Hoses?
1) The specified diameter refers to the inner diameter (ID) of the hose, while it refers to the outlet diameter (OD) at pipes and connections.
2) To determine the correct clamp size, add approximately 2 times the wall thickness to the inner diameter. That will tell you the outer diameter of the hose, which is the inner diameter of the clamp range.
3) Silicone hoses are slightly flexible and can typically stretched by 1–3 mm, allowing for minor size adjustments. If the exact needed size is not available, it is generally recommended to choose the next smaller size.
