It can be done quickly and has the effect of changing the springrate

\n Base Spring Options of 3 -26 PSI

PCD: 5x120->5x112

Compressor Inducer: 62mm

BOV Kompact EM Dual Port VR17 (Toyota Yaris GR) SL-02 It can be done quicklyThe award winning Kompact EM series Blow Off Valves, are the worlds first truly plug and play Blow Off Valves. Simply unplug and unbolt your OEM Blow Off Valve, and install ours in its place. No adapters, hoses or extra assembly required. All this while retaining complete OE control of the BOVs operation. Turbocharger performance is increased due to minimising leakage, rapid response, coupled with superior thermal performance thanks to our world