muffler for stacks

[KPenny]

Can anybody recommend a muffler to quiet down six inch Grand Rocks on a standard cab 06 RAM. I thought that the cat would alleviate the drone, the sound is not intolerable, but seems to plug your ear drums like flying at high altitudes does, weird?? thanks for you help.

 

[MRosinski]

Grand rock internal mufflers QP series.

 

[CBrahs]

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I have a 24 inch flow thru muffler comparible to the 24in donaldson. Sounds good and on the freeway you can barely hear it.



EDIT: I have the manual high idle set to 1100 RPM for the video since I was by myself and did not have anyone to rev it up for me.

 

[KPenny]

thanks for the input guys !!!

 

[KPenny]

Thanks for the reply, have you tried these internal mufflers, somewhere I read or was told that these internal are only effective on the 5" stacks, because it is the same muffler for the 5", 6", and 7" stacks, just wandering. thanks again!!

 

[CBrabec]

Thanks for the reply, have you tried these internal mufflers, somewhere I read or was told that these internal are only effective on the 5" stacks, because it is the same muffler for the 5", 6", and 7" stacks, just wandering. thanks again!!

I am running a 30" dynomax muffler, and internal mufflers inside my 5" stacks on my reg cab. Not bad, but I still have the ear piercing drone at 2000 rpm. With the reg cabs, there's not much we can do to have it quiet with stacks. Also, I had the 6" turnouts, and when I dropped to the 5" it did help. Something to think about.



Chris

 

[CBrabec]

KPenny, I found your soultion to the drone issue with these reg. cab 3rd gens who want stacks. As I stated earlier, I'm running a "30 dynomax muffler but then I added a "27 hushflow muffler from flowmaster. I picked up the hushflow when I was at IRP this year and I can now say I can drive my truck without any drone or resinance. All you hear is the exhaust sound, and its great. I used to get that ear piercing drone at 2000rmp and now its all gone. I'm sure that the hushflow would be good by itself, but I still ran it with the dynomax so I could get the great sound I love. Try it out, only ran about $160. Well worth the money. You won't be disappointed.



Chris