12+ Exhaust when lifting?

[StrizzyChris]

So I was wanting to hear everyone's input on how to address the loop in their exhaust, and mods needed to be done to the exhaust, when lifting.

There are delete systems. While I know nothing about exhaust work, I have been told that the loop is important to keep the flow and pressure equal in each exhaust pipe. That this will take a hit in performance, power and fuel economy. So that's out.

There's the aFe y pipe. But I know nothing about it.

I recall reading someone "flipped" it in some way? This seems like a better option and is intriguing to me.

Any pics would be greatly appreciated!

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[OverlanderJK]

Most people address the issue with new driveshafts. That's the best way.

 

[wayoflife]

Most people address the issue with new driveshafts. That's the best way.

Yup, this is what I would recommend.

 

[The Wandering Jeeper]

I used the aFe "Y" pipe and changed the driveshaft. One thing that came up is that when I relocated the "Y" pipe it moved it closer to the double cardan. The heat from the "Y" pipe caused the grease to come out of the driveshaft and causing failure at the double cardan joint. After this happened I wrapped the "Y" pipe with wrap and built a heat shield around it.

 

[StrizzyChris]

So when I am lifted 4"+, if there's a new front drive shaft, I won't have to address the exhaust loop at all?

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[dchew]

So when I am lifted 4"+, if there's a new front drive shaft, I won't have to address the exhaust loop at all?

You might if you are getting long arms. The "flip" needs to be done with the EVO high clearance long arm for example.

BTW, the way the aFe loop delete works is just by making a bigger diameter on the driver's side. The loop is for timing the arrival of exhaust pulses at the Y. The bigger pipe on the driver's side slows down the velocity, making the pulses arrive at the same time they would with the added loop. The problem is it also moves the Y to behind the transmission crossmember. From what I understand that causes problems if you have the EVO ProTek skid.

Dave

 

[StrizzyChris]

Hmm. Im going to go long arm within the first year after getting my 13(hopefully in 2-3 weeks). But I'm planning on a bolt on system and not the high clearance weld on system. :thinking:

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[aldaman]

Hmm. Im going to go long arm within the first year after getting my 13(hopefully in 2-3 weeks). But I'm planning on a bolt on system and not the high clearance weld on system. :thinking:

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This should work out great for you. Complete bolt on and real easy to install....

 

[dchew]

If you mean the DoubleD Bolt on Long Arm kit, I'm pretty sure the front brackets are the same; you just decide if you want to weld or drill your arm off! It is the rear that is different vs. the high clearance version.

I cut my "bugle" and I see how it fits better flipped, but I haven't gotten to installing it yet...

Dave

 

[Dave_g]

I just got the teraflex spacers and New shafts. Haven't had a problem.

 

[piginajeep]

So I was wanting to hear everyone's input on how to address the loop in their exhaust, and mods needed to be done to the exhaust, when lifting.

There are delete systems. While I know nothing about exhaust work, I have been told that the loop is important to keep the flow and pressure equal in each exhaust pipe. That this will take a hit in performance, power and fuel economy. So that's out.

There's the aFe y pipe. But I know nothing about it.

I recall reading someone "flipped" it in some way? This seems like a better option and is intriguing to me.

Any pics would be greatly appreciated!

Sent from a migrant connectivity device

Hmm. Im going to go long arm within the first year after getting my 13(hopefully in 2-3 weeks). But I'm planning on a bolt on system and not the high clearance weld on system. :thinking:

Sent from a migrant connectivity device

The flip is only needed for Long arm kits, This is a simple fix for the EVO high clearance kit or double D kit. It may not work or is needed for other suspension systems. If your concerned about addressing the driveshaft clearance on a short arm kit, a new driveshaft will solve this issue.

 

[StrizzyChris]

Perfect, thanks guys! I am re-reading and realized I was unclear...but u answered my question anyway :thumb:

I knew about the front drive shaft needing replaced, but didnt know if the aFe was in some was a loop eliminator by design. I gather from your responses that its mostly just for front drive shaft clearance and does nothing to the loop.

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