OutlawDrifter
Well-known member
Put a Helmholtz resonator on each pipe, you can probably get away with 2" pipe to make them. One U-bend, and some straight, and make up a cap for the end. Worked great on my 2014 5.0L Coyote powered F150 and my 454 powered 'burb. 2" holesaw to punch the hole in the tailpipes and then grind and weld as necessary.
Here is a chart to determine length:
https://cimg2.ibsrv.net/gimg/www.f1..._dd75bf4ad279adc127a4b12f956e5ef515b703e4.png
My tuner has a whole spreadsheet for the topic, but I couldn't find it. He goes by "aknovaman" on the various forums.
P.S. dumping under the bed is probably making the drone worse, if I was a guessing man.
Here is a chart to determine length:
https://cimg2.ibsrv.net/gimg/www.f1..._dd75bf4ad279adc127a4b12f956e5ef515b703e4.png
My tuner has a whole spreadsheet for the topic, but I couldn't find it. He goes by "aknovaman" on the various forums.
P.S. dumping under the bed is probably making the drone worse, if I was a guessing man.
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