[JL8Jeff]

You should be able to bolt the cat-back section on if you cut part of the Borla intermediate pipe to mate up with the dual cat y-pipe. The single cat cars just had a longer I-pipe with the 'S' bend in it to reach the cat. You should be able to use it but might need a band clamp. The stock dual cat y-pipe necks down to around 2-1/2" so you might want to cut that section off and use the bigger Borla I-pipe.