Instead of spending money on the axle back, pick out mufflers and tips of your choice and have a shop weld them in. Oh and have them cut out your stock resonator and weld in x pipe and be done with it. I had a shop weld hi flow cats into my off road mids and make a custom catback, (x pipe, magnapacks, tips ) for the dual exit conversion for half of what the magnaflow competition would've cost.
04 Cosmos M6 1 of 377
Cartek tuned 415rwhp