HKS | Super SQV IV Blow Off Valve Kit | Toyota GR Yaris | G16E-GTS | 2021+HKS changed the intercooler charge pipe for the outlet side to the casting aluminium made pipe compared to the resin made stock ones. This prevents expansion or damage to the pipe due to age deterioration. Coordinate your engine bay stylishly with the presence of the SQV IV at the front of the engine. Using the provided suction return hose meets the automobile inspection in Japan. The kit allows using the combination use of the stock air bypass valve