Ok im lookin to put a new exaust on my 4.0L. Im thinkin buy the muffler and take it to a well known shop around my house. Would that be cheaper than buying a cat back. someone has gone through this help me please. Also lookin for a good aggresive loud muffler any suggestions there?

 

cat back would be fine im sure, but once you do the cat back you gonna wanna do headers, so you might as well save now and do it all at once. i think if you stuck with either a magnaflow or flow master you would be mighty happy. flowmaster original 40 is prob one of the loudest aggressive ones around