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Discussion Starter #1 (Edited)
I personally love the look and sound from thinner pipes. If I pick up a single inlet 2.25" muffler can I dual it out to two individual 1-1/8" pipes? Is that the same as just a single 2.25" out anyway? thx

(2016 sv 4x4 4.0L crew cab 6 speed manual)
 

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You can do anything you want to is the short answer. Two 1 and 1/8" pipes have more area inside the outlet than one 2.25" pipe does. I am not a fan of the smaller outlets because I just don't like the way it looks.
 

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If you are asking from a PERFORMANCE viewpoint: Engine Masters has done several tests reguarding exhaust sizing, headers, and quality vs budget. The math says you want slightly smaller than 2 1/4 inch pipes to the muffler and slightly larger than 2 3/4 out of the muffler (if sticking with a single muffler setup). Yes, the stock tailpipe is undersized for peak power.

If you are not concerned with HP (and particularly if you won't be adding any power adders) its personal preference. I have no knowledge what it might do to the exhaust note and resonance.
 
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Discussion Starter #4
Yea performance is always my number one. Thinking midpipe muffler, stock cat and everything else stock but a nice dual stainless look straight out the back under the bumper like the old ram srt10's
 

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Yea performance is always my number one. Thinking midpipe muffler, stock cat and everything else stock but a nice dual stainless look straight out the back under the bumper like the old ram srt10's
I'll do some looking for the exhaust calc. It'll tell you the minimum size pipe for our displacement. and FYI, Engine Masters has proven that going large does not kill TQ (past the cats), denting your header doesn't kill power and a cheap muffler CAN kill power...
 

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I'll do some looking for the exhaust calc. It'll tell you the minimum size pipe for our displacement. and FYI, Engine Masters has proven that going large does not kill TQ (past the cats), denting your header doesn't kill power and a cheap muffler CAN kill power...
Alright appreciate it don't think i'll be going back to cherry bomb's any time soon haha maybe stainless works, flowmaster, magnaflow makes a nice stainless setup, borla etc. And will make calls myself sure most exhaust companies could answer for specific vehicles.
 

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Alright appreciate it don't think i'll be going back to cherry bomb's any time soon haha maybe stainless works, flowmaster, magnaflow makes a nice stainless setup, borla etc. And will make calls myself sure most exhaust companies could answer for specific vehicles.
Cherrybomb isn't a bad muffler for what it is. EM was talking more about the cheap knock-offs (and possibly Thrush 'turbo' mufflers) as they don't do the E & T

Here's the chart I was talking about. 2 1/4 is a good pipe size before the muffler, 2 3/4 is better after the muffler for a single pipe, or 2 1/4 for dual exit pipe.
 
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