Cat-Back Exhaust System Recommendations? - : Jeep Wrangler JK Forum
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post #1 of 5 Old 07-25-2017, 10:04 PM Thread Starter
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Cat-Back Exhaust System Recommendations?

So my next mod is going to be to replace the factory exhaust. I'm looking for something that has a solid sound and features some performance gains. I'm really eyeing the Magnaflow Rockcrawler Exhaust. Since I do a lot of rock crawling, I like how the muffler and pipe tuck up above the middle of the frame. For anyone who has this system, how do you like it? All other exhaust recommendations are greatly appreciated!
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post #2 of 5 Old 07-26-2017, 07:11 AM
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Most people will tell you a cat back system isn't going to be money well spent. The stock exhaust is pretty decent, it is 2.5" already. Also there are hardly zero gains for doing exhaust on these engines. I changed mine (in stock position) a Flowmaster 50. Mainly due to having a manual. Shift more by ear then RPM watching.

What I would do, if I were doing it over. Get a round muffler to fit in between the frame rails, where it is already. Clamp it into place. If you don't like clamps, clamp it and take to a shop to weld in. Then cut the exhaust off where you want in the rear.

2010 2 door manual sport
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post #3 of 5 Old 08-01-2017, 04:32 PM
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I swapped to the magnaflow rock crawler, and the magnaflow 19211 cat back with delete in preps for my long arm install. I will say, holy crap is it a deep rumble. I habe been meaning to get some go pro footage.
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post #4 of 5 Old 08-01-2017, 07:14 PM
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A just put an afe exhaust on, the tail pipe tucks up nicely behind the rear bumper and no exhaust drone.

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post #5 of 5 Old 08-02-2017, 01:31 PM
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search carefully, a lot of the exhausts sound like ass IMO

Heres a quick video of mine. taken from my dash cam with a crappy Mic

Mine is the Flowmaster American Thunder.

Also do you have a unlimited or 2 door? If you have a 2 door keep in mind a lot of the systems that claim to fit both, don't actually fit both so well. There was a lot of cutting to get the Flowmasters to fit my 2 door.

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