Muffler install: O/C or C/C - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 7 Old 06-22-2010, 05:36 PM Thread Starter
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Question Muffler install: O/C or C/C

This question goes out to all those folks that have installed mufflers under the cab of their JKU's. I'm not talking about the catback systems - just the muffler using stock pipes.

I'll be ordering the muffler from an online dealer and have my eye on a Borla ProXS muffler that is 9.5" wide x 14" long and comes in either Offset/Center or Center/Center in/out configurations.


I believe this is the same width as the Flowmaster 40 series that a lot of you use so I expect it to fit the same way. Of course I plan to have this mounted under the cab but which configuration fits best. And yes, I've already measured, but it looks like either one "might" fit. But why guess when I can call upon the wisdom and experience of my fellow Jeepers.

Thanks!

Last edited by DGriz; 06-23-2010 at 06:58 AM.
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post #2 of 7 Old 06-22-2010, 09:49 PM
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Well, I swapped in a glass pack that fits nice and snug but I will tell you there is little room to fit a big body muffler in there. I would use offset inlet/center outlet. You have more wiggle room with the tailpipe.

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post #3 of 7 Old 06-23-2010, 07:57 AM
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If you are planning on mounting it under the driver's side and you say it is the same size as a flowmaster, I used an offset in/same side offset out for my flowmaster 44.
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post #4 of 7 Old 06-23-2010, 09:29 AM Thread Starter
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Quote:
Originally Posted by ALASHA View Post
If you are planning on mounting it under the driver's side and you say it is the same size as a flowmaster, I used an offset in/same side offset out for my flowmaster 44.
Oh, that would be perfect and I know that would fit. Too bad Borla doesn't show that config. as an option. But thanks for the info. That's the kind of feedback I'm looking for.

Anyone else have a different setup?
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post #5 of 7 Old 06-23-2010, 11:14 AM
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Same setup here with the FM44, O/O, fits nice and its above the frame. I angled mine some so its higher toward the center of the jeep.

LJ Rubicon
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post #6 of 7 Old 06-23-2010, 04:48 PM Thread Starter
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Quote:
Originally Posted by JKSteve View Post
Same setup here with the FM44, O/O, fits nice and its above the frame. I angled mine some so its higher toward the center of the jeep.
Are you saying the offsets are on the same side or opposite sides like this?


or

Last edited by DGriz; 06-23-2010 at 05:03 PM.
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post #7 of 7 Old 06-25-2010, 12:40 PM
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You want the bottom one. I used a single chamber flowmaster offset offset and it fit and sounds great.

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