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I have 2007 Roush 427R and I'm looking to make it louder but don't want to get too pricey with what I get. I was thinking about just a muffler delete or something like Roush extreme axlebacks. I just don't know what it would sound like with the stock exhaust from roush. What do y'all think?
 

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I thought the Roush exhaust was pretty loud already, personally I don' think I would want it louder, but that's up to you obviously . . . louder mufflers -- like maybe the "extreme" that you mentioned -- or a muffler delete would be the first, simplest, easiest, cheapest thing to do. Beyond that you could look at removing the cats, but that is illegal and generally obnoxiously loud.
 

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Or you can do a resonator delete, I had done that and the volume increased by 20%
 

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The Roush Extreme Exhaust is quite loud and in a good way. Waking up neighbors is part of having a muscle car. Some have roosters, dogs, cat fights or even alarm clocks....we have Roush Extreme!!
 
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