Going from dual exhaust back to single?

askthemasses · Nov 11, 2018

On my ranger, the PO put in a dual exhaust and it's rotted to hell and has a bunch of rust hols formed or forming. Looking at replacement exhausts, should I just go back to stock single exit? If so, do I need to do anything else to like the cat or can I just bolt right up? Or should I stick with dual?

Unsure of the pros/cons of either, and whether going from one to another requires any special installation adjustments.

Dirtman · Nov 11, 2018

Modern fuel injected vehicles are not "de-tuned" or use anything to restrict power. The factory exhaust was engineered for maximum power and efficiency (and emissions). For the most part changing your exhaust is just to change the sound UNLESS you have from headers to tailpipe and also have the vehicle professionally tuned to make use of any extra gains in flow. That gain would be very limited anyway and is generally a trade off between where your powerband is, and fuel efficiency. So I personally recommend just going back to the full OEM single system. The OEM system is generally designed for meximum midrange power which is what you want on a daily driver anyway. Stock parts are usually much cheaper as well.

You asked about the cat, now do you have a dual exhaust system from the cat back or is it true duel exhaust with a post cat on each side? If its just duel from the cat back you can reuse the cat and just switch the duel back to a single tailpipe and muffler.

askthemasses · Nov 11, 2018

Dirtman said:
Modern fuel injected vehicles are not "de-tuned" or use anything to restrict power. The factory exhaust was engineered for maximum power and efficiency (and emissions). For the most part changing your exhaust is just to change the sound UNLESS you have from headers to tailpipe and also have the vehicle professionally tuned to make use of any extra gains in flow. That gain would be very limited anyway and is generally a trade off between where your powerband is, and fuel efficiency. So I personally recommend just going back to the full OEM single system. The OEM system is generally designed for meximum midrange power which is what you want on a daily driver anyway. Stock parts are usually much cheaper as well.

That's the plan. Just making sure it is really as simple as chucking the old exhaust and bolting the new one up to the cat.

Dirtman · Nov 11, 2018

askthemasses said:
That's the plan. Just making sure it is really as simple as chucking the old exhaust and bolting the new one up to the cat.

Read the last edited part of my post. Depends how its currently setup. But either way, yes you just need to bolt the oem stuff back on... how the duel is done depends how many parts you will need and if you need new cat(s)

sgtsandman · Nov 11, 2018

As long as it's just from the catalytic, back. Switching back to a single exhaust shouldn't be a problem. Most systems out there are cat back. If they did something to split the exhaust all the way from the front to back, that may be a problem.

Going from dual exhaust back to single?

askthemasses

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Dirtman

Former Middleweight Moss Fighting Champion

askthemasses

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Dirtman

Former Middleweight Moss Fighting Champion

sgtsandman

Aircraft Fuel Tank Diver

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