Upgr8 U8919-14 High Performance 4-ply Red Turbo Y-pipe Silicone Hose Kit Applications: 01-05 Subaru Impreza WRX GDA/GGA EJ20 Engine. Min temperature: -60 C/-140 F. Max temperature: 220 C/428 F. work pressure: 0.3 to 0.9 MPA. Bursting Pressure: 2MPA. Thickness: 5MM. Size tolerance: +/- 0.5MM.