Magnaflow exhaust system for the JL

JLU Pilot

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Hey guys...I've been looking into the Magnaflow exhaust for my new JL Rubicon. Really like the look of the black dual exhaust, and the sound clips I've found make it out to have a nice sound w/o being overbearing. For those that have had the system on theirs for a little while now, are you still happy with it? Any issues with drone?
Hey Dave,

I'm very happy with my Magnaflow exhaust. I have had the axle back system on for a few weeks and really like the sound. I do not notice any drone and love the look of the dual black tips on my Rubicon. I did not have any issues with install like some have had in the past and it fits perfect with no rattles.
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DWS44

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I decided to take the plunge, and had the Magnaflow axle-back installed by local 4WP on Friday:

Before:
upload_2019-2-18_16-11-34.png


After:
upload_2019-2-18_16-16-25.png


Love the new look with the dual black tips, and sound is perfect for what I was hoping for. Nice deeper growl w/o being obnoxious!
 

se7en

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Just installed mine. Fitment issues are still not resolved...or maybe I received old stock. IDK.

It was a difficult install. Removed old one in about 20 minutes...new one took about five hours. Would not go over the OEM opening! Had to go to AutoZone and get one of their exhaust outlet sizing tools to widen it. Still lacks about 3/8” to go fully back, but fcuk it...close enough!

Waaaay more hard than it needed to be. I’ve installed three exhausts prior and NONE were this hard.
 

se7en

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A bit more info in addition to the above.

Same ole story. What BS from MagnaFlow. I read where "only 10" units were affected...that's a load of crap. 10% of total production maybe, but not just 10. That so called producation hiccup was the reason I waited as long as I did before buying one. Was hoping that would be fixed and all the problem units were long gone. WRONG!

Luckily, AutoZone allows for the rental of an outlet expander. As I said above, I got the exhaust to within, say, 3/8" from seating perfectly. Close enough. I would have gotten it perfect, but I broke the damn expander trying to get it there.

Northridge did there job in shipping it quickly, but I should have thrown a red flag upon inspection of the box. It had been opened before and re-taped. Why, I don't know...but it was. Maybe someone had already measured the opening and sent it back or something, not wanting the hassle. Maybe I was just unlucky and got some old stock...IDK, but it was NOT a simple and quick bolt on replacement.

Now, it does look great and sound great...but your still playing Russian Roulette when getting the unit. Glad its on but highly disappointed in the fitment.
 

mlebofsky

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I had the axle back black Magnaflow installed by my dealer as part of the "package". Perfect sound, except the tips it contact the Rubicon's metal bumper. You can hear them clang every once and a while … Based on the way the hangers are welded to the muffler, the OEM rubber exhaust hangers are simply 1/4" too short. If I squeeze them with my hand, they lengthen just enough to make the tips sit 1/4" below the bumper, but obviously this is not a livable solution. Does Magnaflow monitor this board?
 

JLU Pilot

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I installed the same exhaust myself on my Rubicon with steel bumpers and it fits great with no contact to the bumper. I would try loosening the clamp that attaches the Magnaflow to the factory pipe and then adjust the tips down a bit and then tighten the clamp back up. There is a little bit of play and adjustment before you tighten that clamp. Hopefully you can reposition them a bit. Good luck.
 

Tech Tim

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@mlebofsky, we didn't have a problem on ours either.

X2 on what @JLU Pilot said, try loosening the mounts, see if you can get it to drop a little. Also check your rear bumper position, maybe you can loosen the bumper bolts and shift it up a small amount?
 

DWS44

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Steel bumper on mine as well, no issues here either.
 

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I had the axle back black Magnaflow installed by my dealer as part of the "package". Perfect sound, except the tips it contact the Rubicon's metal bumper. You can hear them clang every once and a while … Based on the way the hangers are welded to the muffler, the OEM rubber exhaust hangers are simply 1/4" too short. If I squeeze them with my hand, they lengthen just enough to make the tips sit 1/4" below the bumper, but obviously this is not a livable solution. Does Magnaflow monitor this board?
I installed the same exhaust myself on my Rubicon with steel bumpers and it fits great with no contact to the bumper. I would try loosening the clamp that attaches the Magnaflow to the factory pipe and then adjust the tips down a bit and then tighten the clamp back up. There is a little bit of play and adjustment before you tighten that clamp. Hopefully you can reposition them a bit. Good luck.
^^ These are the exact steps to adjust the final fitment of your MagnaFlow exhaust system. It shouldn't be necessary, but you can have a helper hold the rear muffler assembly in place while you tighten the clamp to the recommended 40 ft/lbs of torque. If for any reason you are not able to solve the issue with these steps, please give our support line a call at 1-800-990-0905!
 

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Just installed yesterday. Nice sound. Not too loud, quiet on the highway.

Bought MagnaFlow because I love what they do on OverHaulin
 

mlebofsky

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^^ These are the exact steps to adjust the final fitment of your MagnaFlow exhaust system. It shouldn't be necessary, but you can have a helper hold the rear muffler assembly in place while you tighten the clamp to the recommended 40 ft/lbs of torque. If for any reason you are not able to solve the issue with these steps, please give our support line a call at 1-800-990-0905!
Negative. Tried that. I have talked to a few others on the forum who have had the same issue. Don't know if it's a bumper positioning thing, muffler bracketry thing or what ...
 

Magnaflow

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Just installed yesterday. Nice sound. Not too loud, quiet on the highway.

Bought MagnaFlow because I love what they do on OverHaulin
We're coming back on the reboot-keep an eye out!

Negative. Tried that. I have talked to a few others on the forum who have had the same issue. Don't know if it's a bumper positioning thing, muffler bracketry thing or what ...
When you have a chance, please snap a few pics and give our customer support line a call at 1-800-990-0905.
 

mlebofsky

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We're coming back on the reboot-keep an eye out!



When you have a chance, please snap a few pics and give our customer support line a call at 1-800-990-0905.
Yes. Did that months ago. After the pics were received and reviewed, I was told by your customer service to try bending the muffler's welded on support arms to correct the problem. And they sent me a t-shirt for the inconvenience ….
 

Sippican

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We're coming back on the reboot-keep an eye out!



When you have a chance, please snap a few pics and give our customer support line a call at 1-800-990-0905.
Rich Waitas represents the brand perfectly. After watching him put these exhausts together, I knew I would not look at any other product besides Mangaflow.
 

Sippican

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Yes. Did that months ago. After the pics were received and reviewed, I was told by your customer service to try bending the muffler's welded on support arms to correct the problem. And they sent me a t-shirt for the inconvenience ….
I didn't get a t-shirt! Lucky you!
 
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