dont know what the f*ck happend

i just got the apexi ni ex... on and like 7 hours later i was driven and my check engin light came on and my spadometer was not working .... it was saying i was going 0 mph when i was going like 50.... and i wanted my windo to go up it stoped half way........ do you think it was the ex... or the peaple putting it on didnt do something right..... i dont know ...i wanted to know if some might know what the hell is going on


.... the ex.. is nice.. loud and deep.....and i can fell the hp gains i thought i would throw that in........................................

I entirely doubt your exhaust has anything too do with your window :lol:

get your code read at like autozone and it will tell you why the light came on.