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Resonator Question

Old 07-17-2014, 02:08 AM
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Question Resonator Question

I've searched around on here and other forums for a while but have quite found what I'm looking for. I've got the borla made GMPP currently on the truck and looking to add a resonator in front of the muffler to cut down the drone but not necessarily make it quieter (although it will be a biproduct). I know typically on normal mufflers the smaller the louder but does this also apply to the bullet style mufflers?

I'm not really worried about the price but want a stainless muffler to go with the rest of the stainless system. I think I have it narrowed down to three options and they're below in order of how I'm currently leaning.

1. Kooks PN R300-10. It has a case length of 10". (Should have the least impact of output level correct?)
2. Borla XR1 PN 40085. This one has a length of 15". (Afraid this length might make it too tame)
3. Dynomax PN 24248. It has a case length of 12". (Not really sure if there'd even be much difference between this and the kooks)

Last edited by LETHL_SS; 07-17-2014 at 02:51 AM.
Old 07-21-2014, 03:06 AM
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A flowmaster y merge and magnaflow muffler will eliminate drone.
Old 07-22-2014, 11:09 AM
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Originally Posted by low2001gmc
A flowmaster y merge and magnaflow muffler will eliminate drone.
I've decided on a 4" round magnaflow muffler and will go from there. I'm sure that will take care of it though. Thanks for your input.
Old 07-25-2014, 12:18 AM
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I will be changing my set up and removing a magnaflow 4 30 muffler with maybe 1000 miles on it. Anybody interested in it can message me.
Old 07-25-2014, 12:25 AM
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How to actually get rid of drone.....

https://www.performancetrucks.net/fo...-drone-489463/
Old 07-25-2014, 07:35 AM
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Originally Posted by smokeshow
How to actually get rid of drone.....

https://www.performancetrucks.net/fo...-drone-489463/
Voodoo black magic and therefor not trustworthy!
Old 07-25-2014, 10:51 AM
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I used a 3 in from vibrant and it worked well.
Old 07-25-2014, 02:09 PM
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Originally Posted by Atomic
Voodoo black magic and therefor not trustworthy!
I've build 5 at 32" and all of them have worked. Got rid of at least 80% of the drone. Killed drone on my Dmax 100%! Knocked 10dB off my turbo truck at cruse.
Old 07-25-2014, 02:20 PM
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Originally Posted by smokeshow
How to actually get rid of drone.....

https://www.performancetrucks.net/fo...-drone-489463/

The exhaust shops in my area blow and havent found one willing to do this. Wish I could weld or I'd do it myself. I'm still looking around but may end up doing the magnaflow muffler.
Old 07-26-2014, 07:02 AM
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Here is a pic of KB's resonator, and it works. Show your exhaust shop this picture, its a simple concept.

Name:  reso1_zps620d0ff7.jpg
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