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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 04-16-2012, 06:38 PM
heathdeloach heathdeloach is offline
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Default put on a flowmaster today... question about resonators

I had a 40 series flowmaster put on my 2012 1500 today. Sounds pretty good, but not quite as loud as I was hoping for. The guy said he could cut off the resonators (?) and replace them with straight pipe. They are located just behind the tips of the dual exhaust. Will this make much of a difference?
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Old 04-16-2012, 10:02 PM
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a little but your FM is a chambered muffler just like the stock one so it's mostly for sound and not performance. what you want is a stright thru design like borla or a short magnaflow with the resonators removed.
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Old 04-17-2012, 02:23 AM
Jchaney579 Jchaney579 is offline
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A single Flowmaster isnt much to be honest. Got True Dual Cherry Bomb Extremes on mine. Kept the resonators... Heres a clip of the exhaust and yata yata yata.


Last edited by Jchaney579; 04-17-2012 at 05:01 AM.
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Old 04-17-2012, 02:25 AM
5500 5500 is offline
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Had the same experience when I had my Magnaflow installed. Replaced resonators with straight pipe and it woke up the sound without making it too loud. No drone in mine (RCSB) without the resonators but others have reported droning.
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Old 04-17-2012, 02:26 AM
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yea it will sound different. Leave your cats in dont remove them
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Old 04-17-2012, 02:36 AM
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I'm not sure about the 4th gens but my 3rd gen had another resonator after the Y pipe and on the tailpipe section, replacing both with straight pipes def woke up the Hemi!
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Old 04-17-2012, 03:17 AM
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I removed my resonators after installing my FM and I'm very pleased with the sound

Go for it!!
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Old 04-17-2012, 03:34 AM
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Quote:
Originally Posted by MOPAR MULiSHA View Post
I'm not sure about the 4th gens but my 3rd gen had another resonator after the Y pipe and on the tailpipe section, replacing both with straight pipes def woke up the Hemi!

Are you sure you didnt remove your cat? I only have the muffler and the resonator after the muffler...
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Old 04-17-2012, 04:51 AM
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Quote:
Originally Posted by knappk6 View Post
Are you sure you didnt remove your cat? I only have the muffler and the resonator after the muffler...
03/04 no resonators, 05 got a rear resonator, 07 got front and rear (due to MDS) and in 2008 they removed the front resonator.

I have an 07 and NO muffler shop will remove cats (on the books anyway)
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Last edited by MOPAR MULiSHA; 04-17-2012 at 04:54 AM.
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Old 04-17-2012, 06:09 AM
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Quote:
Originally Posted by MOPAR MULiSHA View Post
03/04 no resonators, 05 got a rear resonator, 07 got front and rear (due to MDS) and in 2008 they removed the front resonator.

I have an 07 and NO muffler shop will remove cats (on the books anyway)

ahh ok, didnt realize that they had two on there. didnt mean to make it seem like i was questioning your knowledge!
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