ok my car is at the shop getting headers put and x pipe put on......i just got a call and they told me that the 02 extensions i got wont plug in.......what would be the cause of this? and i do need them dont i? do i need them in the front or the rear?

 

Need a little more info. Why won't they plug in? Yes you need them.

 

said something bout the prong wont let them go in the holes for them....

 

you need them for the front, are you saying they arent long enough? you need o2 extensions if thats the case. otherwise you either got the wrong o2s, or the guys putting them in are idiots.