Silicone Intake Hose for the Peugeot RCZ 200 THPA silicone intake hose for the Peugeot RCZ 200 THP engine. This hose runs from the turbo to the air filter and incorporates the breather hose to the cam cover. The Forge silicone hoses in this kit have been designed to include an expensive inner liner of modified silicone known as Fluorosilicone. This means the hoses are suitable to be used with either modern long life coolants, Organic Acid Technology coolants (O. A. T.) or air containing oil mist.