P2M Nissan SR20DET (RWD) silicone radiator hose kit is made from heavy duty 4 ply layered silicone material that is durable for extreme temperature and pressure use in automotive engines. In addition, P2M now incorporates the upper cooling performer radiator hose with the kit for people looking to add water temp sensors an optional feature. Kit comes with water temp fitting of M10x1.0 and 1/8 PT.