What muffler are y’all running? Old Caterpillar (Peterbilts and Belt Buckles)

@Old Man just put spools in his. That's what I want to do.

 

https://www.4statetrucks.com/exhaus...y-RnSndZyPtemSZDsXSdOEj9D2QLd2rxoCOgkQAvD_BwE

 

Mine has Lincoln Chrome spools and a short muffler underneath, series 60, still way to loud. I use these, can hear cb and stereo, I hear sounds in music I never noticed before, makes for a nice day and lowers stress
My chase car commented on my jake noise going down Monteagle. Way too loud.

 

Got that one, not much help.

 

I went from a muffler to a straight pipe and I can say the muffler made a huge difference. I’m sorry I don’t know the brand. This is on a 96 FLD 120. The muffler definitely kept it quiet and muffled the jakes noticeably.

 

I was told this is the same as the one PP markets as their own for less.

Advance Auto Parts - Down for Maintenance

 

What's this "muffler" you speak of???

 

MBRP 5" Quiet Tone Diesel Muffler
These are cheap and easy to install. A true 5" is important, some neck down to 4" internally and that's no good.

 

Looks like it. I bought them from Ryder. They’re gone now. That’s a good price. They’re a little bit louder than originals. Not necessarily a good rumble sound or anything special. Just louder. Considering a single pipe splits into 2, I question the validity of any improvement in flow. Good muffler at a good price.