GFB Deceptor Pro II TMS Direct Fit Motorized BOV for Subaru WRX/ STi (T9503) Moroso 500 RPM when used with

500 RPM when used with KVS18K spring kit

burned blue tips

including high pressure performance

2003-2004 Evolution VIII

Plug and play fitment without adaptors

GFB Deceptor Pro II TMS Direct Fit Motorized BOV for Subaru WRX/ STi (T9503) Moroso 500 RPM when used withThe T9503 Deceptor Pro II TMS is a direct fit motorized blow off valve (BOV) featuring GFB's TMS advantage and an in cabin adjustable venting bias system. This innovative diverter valve allows you to control the BOV sound from inside the cabin, providing convenience and flexibility. Building on the 'Respons' concept, the Deceptor Pro II offers even greater control and customization for your blow off valve setup. Vehicle Fitment: 2014+ Subaru STi 2014+