1. You can splice the Quikie cutouts anywhere in the exhaust system that you want. We wanted to run ours right off the header collectors. Due to clearance problems on our Chevelle, we had to make some short pipe extenders (about 11/2 inches long) to get the cutouts to exit where we wanted. If your car has plenty of room, which most older cars do, simply weld the triangular collector ring onto the cutout.