I installed a greddy type s bov on my gst a little while ago but then i notice that in 2nd, 3rd and 4th gear after 3500 to 4000 it feels like the car hits a fuel cut off and Ive looked pretty much everywhere to find this answer but couldnt find it and no one seems to know....thats the only mod i have done to the car but whats weird is that when i tried an hks sqv it did the same thing so i put my stock bov back on and it worked fine but it does feel sluggish at high rpms......

and please if you dont have anything contributing to say....dont bother replying