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what is the diff between a cat back exaust and a muffler.

 
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catback has piping which comes from the catback, which is up by the header. if you buy a catback system, all the pipes are included. if u get just a muffler, you could just swap with the stock but if u wanted bigger pipes, you'd have to get custom ones

 
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yea, i got a custom 2.25 piping with my Rytek muffler..i could feel the acceleration differnet and i guess
the torque is highter now![IMG]i/expressions/face-icon-small-smile.gif[/IMG]

 
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custom is the way to go........
but than it's my thoughts so who cares