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  #1  
Old 12-30-2009, 01:36 PM
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Straight Pipe + Resonator

The 5.7 Hemi has a beast of a muffler and a resonator in the back.. I replaced the muffler a long time ago with a 22" exhaust and sometimes (most of the time) I don't think that it's loud enough... sooooooooooo........

It seems that Scott has been preaching for a while to dump the muffler and just keep the resonator in the back, so I'm going to entertain myself today and get a straight pipe put in for $40 at the exhaust shop. Chances are that I might get tired of it so I'd just go back and put the old magnaflow muffler back on.. so meh.. what's money when it's that cheap.

I'll update you guys with tolerability, drone and sound and we'll see if it's my taste.
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  #2  
Old 12-30-2009, 03:40 PM
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Re: Straight Pipe + Resonator

Yeah I was waiting for someone to bump the muffler and keep the reso. Good luck and post a vid when you can.
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  #3  
Old 12-30-2009, 03:41 PM
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Re: Straight Pipe + Resonator

Oh boy. This is apples to oranges because I'm comparing a 4.7 WJ/5.7 WK but it should still apply.

It is going to be loud. I run a 4x14 Magnaflow (which is classified not as a muffler but as a resonator ) . It is loud. Ask the guys that were at the NJ/NY JG Meet 3 days ago. And thats with 3 cats. It doesn't bother me one bit, but it definitely is not "wife-friendly" or anything like that.

How large is the reso?
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Old 12-30-2009, 03:42 PM
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Re: Straight Pipe + Resonator

Thanks I'll keep you all posted but I can't make it today something came up.. I'm still going to try it but in the meantime I'm going to order a 18" (5x11x18) magnaflow incase I don't like it.. the 22" is great but the hemi could sound much better more often.

No idea how big the reso is..
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Old 12-30-2009, 03:44 PM
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Re: Straight Pipe + Resonator

Yeah Ryan your jeep sound nice when you drove off. IMO it was a perfect tone and loudness.
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  #6  
Old 12-30-2009, 03:51 PM
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Re: Straight Pipe + Resonator

Quote:
Originally Posted by BlackPepper View Post
Thanks I'll keep you all posted but I can't make it today something came up.. I'm still going to try it but in the meantime I'm going to order a 18" (5x11x18) magnaflow incase I don't like it.. the 22" is great but the hemi could sound much better more often.

No idea how big the reso is..
Ryan,

How large is the piping? 2.5? The Hemi needs 3" piping AT LEAST to really breath. If I had one I'd go larger, but for performance use, a 3" single is a must. Again, apples to oranges, but I have significant track proven gains from going to a performance 2.5" to 3" exhaust from the Y back on my 4.7.

I'd like to hear the answer to the above question first, and then I'll chime in with more insight. Assuming you want it of course.
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Old 12-30-2009, 03:53 PM
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Re: Straight Pipe + Resonator

Hell yes your insight is valuable to me, the more opinions the better. The HEMI comes with 2.75" piping, will the extra .25" help out?
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Old 12-30-2009, 03:55 PM
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Re: Straight Pipe + Resonator

FRankie and I have two small resonators on our jeeps and they sound very, very similar. Even though he has a 5.7 hemi and mine is a 4.7 gen 2 stroked to 5.7....the sound is very similar. Listen to his vids to get an idea. You should be very close becaause your resonator looks pretty large....but you have 2.75" piping compared to our 3"
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Old 12-30-2009, 04:02 PM
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Re: Straight Pipe + Resonator

Quote:
Originally Posted by BlackPepper View Post
Hell yes your insight is valuable to me, the more opinions the better. The HEMI comes with 2.75" piping, will the extra .25" help out?
Glad to help.

If money isn't an issue then yeah, I'd go with 3" piping or larger. I am a big fan of the Magnaflow round resonators/mufflers. IMO they sound alot better than the ovals- I used to run a 5x8x18 oval.
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Old 01-03-2010, 09:41 PM
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Re: Straight Pipe + Resonator

i think you're gonna dig it. i have a 4x14 magnaflow with no reso and its loud and deep sounding. mine drones pretty bad, but i think its more to do with the side exit setup
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Old 01-04-2010, 09:32 AM
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Re: Straight Pipe + Resonator

SO, has anyone actually done the muffler delete on a HEMI? I would be interested to see what is sounds like with a straight pipe and just the resonator. Thanks
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Old 01-04-2010, 10:45 AM
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Re: Straight Pipe + Resonator

Quote:
Originally Posted by BenReardon View Post
SO, has anyone actually done the muffler delete on a HEMI? I would be interested to see what is sounds like with a straight pipe and just the resonator. Thanks
it probably sounds a lot like my magnaflow resonator with no muffler
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