That should bolt up no problem. The extension to the cat is only about 6 inches iirc. I wasn't paying attention in the shop when they did it, but whatever shop you go to shouldn't have a problem with that. Just let them know the diameter of your pipes so they can let you know if they have it available to connect to your cat.
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I will add that you can spend less money for the same setup, minus the Megan tagged pipes.
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