12:05 Garage- ’70 Duster build

Interesting. There is a TTI exhaust on my Duster, installed by my buddy when he owned it. Haven't paid much attention to the mufflers, but pretty sure they are DynoMax? I get a pretty good drone at 60-65 and figured a louder muffler would only make it worse, but your results make it sound like I might pick up some power and quiet it down too. Hmm...

Funny thing is, I have the H pipe off the car while I work on some upgrades. Might be the right time to mess with it some.

Thanks!