Bend Radius: 3 4 HPS 5 32 ID Black high Temp Reinforced Silicone Heater Mazda MX 5 MK1 1.8 Silicone Ancillary Heat Resistant Coolant & Breather HPS 1 2" (13mm) High Temp Reinforced Silicone Heater Hose Tubing, Sold HPS 1 4" ID Blue High Temp Reinforced Silicone Heater Hose Tubing 1. Key Features The only kit that covers all the coolant, heater and ancillary hoses (total of 15pcs). Made with correct bends and curves for perfect fitment. Prevent and fix the coolant leaking and engine over heating problem caused by cracked, damaged or collapsed OEM rubber coolant hoses. Made with correct bends and curves for perfect fitment. Race proven design with long lasting quality and engineered for extremely high temperature service (Max. 350F) and prolonged exposure to under hood and coolant heat. Includes 100 percent stainless steel industrial grade embossed hose clamps which would not cut through the silicone hoses. 100% Satisfaction Guarantee. HPS Performance will help you to troubleshoot all the technical issues and questions. HPS red high temp 3 ply reinforced silicone coolant hose kit 15pcs complete set (part number 57 1814 RED) replaces 2005 Subaru Impreza WRX STi 2. 5L Turbo stock OEM rubber upper and lower radiator hoses, heater hoses and ancillary hoses with premium grade high heat resistance material which meets or exceeds OE specifications (Maximum temperature rating: 350F). Compared to the local auto parts store universal hoses, HPS silicone radiator and heater hose kit has all the correct bends and curves for a perfect fitment. HPS silicone coolant hose kit includes 100% stainless steel non perforated embossed hose clamps for easy installation, which do not cut through the silicone hoses. HPS silicone hoses can prevent and fix the coolant leaking and engine over heating problem caused by cracked, damaged or collapsed OEM rubber coolant hoses. Excellent for extreme ambient and radiant temperature conditions, HPS silicone hoses can withstand the harsh high temperature and high pressure operating conditions of the engine yet still maintaining peak efficiency during daily driving or racing competition. HPS silicone hose kit is backed by HPS Performance Products limited lifetime warranty. Vehicle Application 2005 Subaru Impreza WRX 2. 0L Turbo 2005 Subaru Impreza WRX STi 2. 5L Turbo