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single or dual exhaust on turbo engine?

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Old 02-28-2018, 08:36 AM
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Noahs944
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Default single or dual exhaust on turbo engine?

Hi, I have a relatively stock 2.5 engine (but with larger turbo).
I'm wondering what you guys suggest regarding exhaust.
This is going to be mostly a daily driver, with several AutoX and occasional track day car. Sometimes I drive for 9 hours in one 24 hour period.
The province I live in doesn't test for emissions (yet).

My concerns are: power, sound quality (I like a sporty exhaust note, but don't like drone), exhaust odour, aerodynamics and aesthetics.

What I have to play with:
Exiting the turbine is 2.0" pipe that becomes 3" within 12 inches on downpipe.
I have bought 2 "high flow" (400) 3" cats and 2 3" magnaflow tubular mufflers, the entire exhaust will be made from 3" pipe.

Should I go single or dual exhaust?
Old 02-28-2018, 09:14 AM
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gruhsy
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Single exhaust on my car with 3, 4 and 5 inch all sound fantastic to me.
Try an MBRP resonator. I am going to be trying one out but I am a ways away from getting things back together.
Old 02-28-2018, 12:06 PM
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JustinL
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Screamer pipe. Do it!
Old 02-28-2018, 12:46 PM
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V2Rocket
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dual exhaust will only make your wallet lighter and your car heavier.

FWIW the 700 HP dodge Hellcat cars use a dual 2.75" system with EPA-happy cats and mufflers.
Old 02-28-2018, 12:46 PM
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Paulyy
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twin exhaust is a waste of time on a single turbo car. 3" turbo back is good.

I had a twin exhaust, but the 2nd was a screamer pipe to the rear. It was cool but got over it.
Old 02-28-2018, 02:17 PM
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Auto_Werks 3.6
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I would start with a single 3"... also your exhaust exiting the turbine is too small....possibly your turbine is too small. Get rid of that #6 housing!!
Old 02-28-2018, 02:30 PM
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MAGK944
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+1 for a single 3” unless you do a jet engine swap, then definitely go for a twin 6”

Old 02-28-2018, 03:12 PM
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shortyboy
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3" turbo back, not cat or resonator, no wastegate tie in, wastegate dump pipe, to dual 20" tips. LOUD but I also got silencer inserts for em, since its my daily driver. Turbo wine is alot more noticeable. I also have exhaust popping on de-acceleration and known to pop flames every so often. =)



Last edited by shortyboy; 02-28-2018 at 03:35 PM.



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