Man, that is a big expense & a **** load of work not to mention the body filler, sanding & painting to make everything fit. A much simpler solution would be to drill 2 holes in your existing diffuser where you would like the tailpipes to exit & re-route your exhaust as required. Another possible solution might be to install the 2009 -2011 Rear Diffuser & proceed as above. At least the dimensions are closer. I have a Brand New Diffuser still wrapped in bubble wrap from the Dealer. You can have it for $80. Delivered to Seattle area in September when I pass through on my way to Oregon./Glen