This BOOST Products Silicone end caps are reinforced with textile layers to be extreme pressure resistant and also to vacuum in your boost System. These caps are suitable for blanking of your intercooler or radioator pipes/tubes, intake systems, water lines or similar. Also ideal when an engine and/or auxillary parts have been removed and been standing for a long time, corrosion etc. is slowed down by closing open connections on the engine and parts. The silicone blanking caps can withstand up to 5 Bar and temperatures up to 220° C. They are not to be used to get in contact with fuel or oil!
In contrast to other suppliers, the Boost Products silicone caps are reinforced thanks to multiple fabric inserts, so they can also be loaded with pressure (air/water).
After many tests we deliver best quality at the best price! The BOOST Products silicone Products have achieved and many times even exceeded the quality of silicone items compared to ones made by well known manufacturers in quality tests. This silicone is durable and flexible, stable and color-proof after many years. Lots of well known company's in the tuning and motorsport areas rely on silicone Products made by BOOST Products. Rely on our quality!
BOOST Products silicone blanking caps have until 38mm 3 layers of fabric and 4,3mm wall thickness. They come with a small subtle BOOST Products logo which proofs the silicone hoses' quality.

What you should consider with Silicone

- The diameter refers to the inner diameter
- when choosing the clamp take the wall thickness x2 for the right size
- silicone Products are 1-3mm elastic
- if you can't find the right size, choose the smaller one which is available