jai une silvia 92 redtop jai esseyé d'instalé une bov aftermarket dessus pit a l'ouvre pas.....est quili yen a une dorigine mais pas bruillante dessus qui faudrait que je debranche avant....?????? merci
did u try adjusting the spring tension of the bov? is your vacuum line set up correctly and not leaking? i used the big nipple on the throttle body (no tee). the stock recirculation valve (bov) is right behind the smic. remove it and plug it up