Jeepn392 Adventures review - Is the MRT H pipe the best exhaust mod for the Rubicon 392? #jeep #jeepwrangler #jeepwrangler392

[MRT Performance]

 

[Tank2112]

Ordered one myself, waiting on shipment. With the discount I paid $318.94.
I am asking myself if I just overpaid for $20 worth of ss muffler pipe?

 

[MRT Performance]

Ordered one myself, waiting on shipment. With the discount I paid $318.94.
I am asking myself if I just overpaid for $20 worth of ss muffler pipe?

High quality H-pipes are designed and manufactured to exacting standards in order to provide optimal performance and durability.

One important factor to consider is the quality of the stainless steel used to make the h-pipe. MRT only uses T304 stainless steel for exhaust components due to its strength, durability, and resistance to corrosion and heat. However, not all stainless steel is created equal and other competitors in the exhaust market can offer a super cheap price for a product that will only last a few years before it corrodes and no longer operates as it was supposed to. All MRT exhaust systems are designed and manufactured to last the lifetime of your vehicle. Rest assured you will be installing a quality product that far surpasses anything on the market.

In addition to the quality of the materials, the craftsmanship is an important consideration as well. Each 392 H-Pipe is handcrafted in house at our location based in Plymouth, Mi by our talented team.

 

[Commbubba19]

I've posted this elsewhere so buyers are aware.

There are some fitment issues with this h-pipe. It's barely long enough and the relief cuts which allow the ends to clamp are a bit too long. This causes leaks.

I installed this 2 weeks ago or so and after some time finagling I'm still dealing with exhaust leaks at 3 of the 4 junctures. Mine also had red writing on it making it look like it was some sort of prototype for the jig.

Albeit the unit is secure and i'm not worried about any 'issues' i would have preferred a better seal. I'd also recommend loosening the two oem clamps right above the muffler to allow for a bit more adjustment.

Sound wise if OEM quiet mode was 3, this is a 3.5.
OEM performance mode on is a 6, this is a 7. You also get a few more burbles and pops.

 

[Tank2112]

High quality H-pipes are designed and manufactured to exacting standards in order to provide optimal performance and durability.

One important factor to consider is the quality of the stainless steel used to make the h-pipe. MRT only uses T304 stainless steel for exhaust components due to its strength, durability, and resistance to corrosion and heat. However, not all stainless steel is created equal and other competitors in the exhaust market can offer a super cheap price for a product that will only last a few years before it corrodes and no longer operates as it was supposed to. All MRT exhaust systems are designed and manufactured to last the lifetime of your vehicle. Rest assured you will be installing a quality product that far surpasses anything on the market.

In addition to the quality of the materials, the craftsmanship is an important consideration as well. Each 392 H-Pipe is handcrafted in house at our location based in Plymouth, Mi by our talented team.

Wonder what type of stainless steel the factory exhaust is made of?

 

[Tank2112]

I've posted this elsewhere so buyers are aware.

There are some fitment issues with this h-pipe. It's barely long enough and the relief cuts which allow the ends to clamp are a bit too long. This causes leaks.

I installed this 2 weeks ago or so and after some time finagling I'm still dealing with exhaust leaks at 3 of the 4 junctures. Mine also had red writing on it making it look like it was some sort of prototype for the jig.

Albeit the unit is secure and i'm not worried about any 'issues' i would have preferred a better seal. I'd also recommend loosening the two oem clamps right above the muffler to allow for a bit more adjustment.

Sound wise if OEM quiet mode was 3, this is a 3.5.
OEM performance mode on is a 6, this is a 7. You also get a few more burbles and pops.

That's why I asked if anyone was welding these H-pipes on instead of using clamps at the rear connection?

So are you recommending cutting the factory exhaust closer to factory resonator to give more exhaust pipe lenght?

 

[Commbubba19]

That's why I asked if anyone was welding these H-pipes on instead of using clamps at the rear connection?

So are you recommending cutting the factory exhaust closer to factory resonator to give more exhaust pipe lenght?

My first concern when i saw where the cuts were made is the pipes have a general radius to them as they come to the resonator. MRT recommends cutting 1-1/4 or 1-1/2" (i can't remember) from the body of the resonator. This does leave a relatively straight section where their h-pipe connects. However it's a very close tolerance. I measured multiple times before cutting and feel I was spot on accurate to their direction. Any closer and you begin getting to the section of oem pipe that tapers to the weld which you don't want. You get maybe an inch of connection and the relief cuts in the new h-pipe are about 3/4" if not longer. So getting a good seal is very hard.

Same at the front.

I would like to have seen about a 1/2" more length at the front for to the OEM slip connection. With the OEM muffler pushed all the way forward I was still not as overlapped as the oem connection was. Hence that even with the clamps placed as they recommend I still had exhaust leaks.

Taking this to an exhaust shop would solve by welding.

I should have taken pictures but I wasn't assuming the issues until i was basically done.

 

[Commbubba19]

Wonder what type of stainless steel the factory exhaust is made of?

the cheap kind haha

 

[MRT Performance]

There looks to be some variation from vehicle to vehicle when it comes to cutting the flared tubing exiting the rear of the resonator. The best place to cut is where the flare on the exhaust tube is at its widest point. The flares are not universally uniform and can flare out to the widest point at slightly different locations between vehicles. We are working to update our instructions to reflect this finding.

 

[Quadjeeper]

I installed the MRT pipe this am, and I LOVE it! Easy install too. On my particular application the pipe area after the resonator is more than adequate for a good seal. Others have mentioned it being too short and or the slots not covering the pipe. I did not have those or any other issues. Very happy with everything.

 

[Commbubba19]

I installed the MRT pipe this am, and I LOVE it! Easy install too. On my particular application the pipe area after the resonator is more than adequate for a good seal. Others have mentioned it being too short and or the slots not covering the pipe. I did not have those or any other issues. Very happy with everything.


View attachment 20378

lay under your Jeep and remote start it. Put your hand near the joints and feel for air leaks.

 

[22 392]

Install went smooth and very pleased with product. Thanks MRT.

 

[Tank2112]

Installed my H-pipe today. Had the rear pipes welded but clamped front pipes so muffler could be removed for service if necessary. Did weld front clamp to h-pipe to help incase clamps were to loosen. My initial impression is now when in Performance mode it is just louder. Not a deeper tone like some say you get if going from a X-pipe to a H-pipe. Quiet mode is still quiet, hasn't changed much at all, if any.

I did shine a flashlight through one end of the factory resonator and took a couple of pics. The X section of the factory resonator is all open, one side to the other. Definitely no restriction in factory resonator system.

To me, now driving around town in Performance mode and at normal throttle, sounds better, little louder.
Kind of like how the factory cold startup in Performance mode starts out louder, then quietens some.....that would be a close comparison to installing the resonator delete H-pipe...just a little louder.
Good thing is that if in Quiet mode, Jeep is still quiet for longer hwy trips.

 

[V8flooz]

Installed my H-pipe today. Had the rear pipes welded but clamped front pipes so muffler could be removed for service if necessary. Did weld front clamp to h-pipe to help incase clamps were to loosen. My initial impression is now when in Performance mode it is just louder. Not a deeper tone like some say you get if going from a X-pipe to a H-pipe. Quiet mode is still quiet, hasn't changed much at all, if any.

I did shine a flashlight through one end of the factory resonator and took a couple of pics. The X section of the factory resonator is all open, one side to the other. Definitely no restriction in factory resonator system.View attachment 20570View attachment 20571

To me, now driving around town in Performance mode and at normal throttle, sounds better, little louder.
Kind of like how the factory cold startup in Performance mode starts out louder, then quietens some.....that would be a close comparison to installing the resonator delete H-pipe...just a little louder.
Good thing is that if in Quiet mode, Jeep is still quiet for longer hwy trips.

Very well made setup, but a bit loud for the split second start up for my close neighbors early mornings. When open at full, or close to WOT, it’s super loud. Taking mine off and Will have for sale shortly for $250.

 

[ScottKaz]

in off road + mode the burbles and pops are insane lol!! this is what this animal should have sounded like from the jump. Ive owned this motor in My SRT Jeep and Trackhawk and did a resonator delete with H pipe replacement and what a difference in the sound.

 

[V8flooz]

Personally, I thought the exhaust in open mode was too loud, and I'm no prude! I live very close to my neighbors, and, leaving early AM was not an option on the one second start up. Modified by adding glass packs. IMO, it now has a better throaty sound, and not so harsh at start up. Was a bit of work to make a jig and cut down one of the 17" mufflers

 

[Tank2112]

I agree that for me it ended up being too loud. I quickly replaced the h-pipe resonator delete with a Magnaflow Street exhaust and love it. Helped with drone and has a deeper tone.