need help, not sure to ask here..

[alpine300]

Hi there, not sure if this is the right place to put this, just wondering if I install a bov, downpipe and 4" exhaust system would that make my car lose power or idle funny, because i have installed these parts and now my car does not want to move when I punch on the throttle, any help would be appreciated, if this is a wrong way to post this question, I am sorry.. thanks anyway..

[TomHpro]

check ur IC pipes to see if they are all connected. maybe check to make sure the BOV isnt loose and is working properly. But with all those things installed it should make no difference with how the car boosts. my guess is an IC pipe or leak somewhere.