specific question about RPMs

[yoelev]

so i have the Dinan diff which means at like 3600-4000 rpm i am going highway speeds, say 78 mph. i just recently removed my MPE because in that specific range, there is some pressure in the pipes and a tremendous drone in the car that i just could not take. my question is do you guys think that this would be the case for EVERY exhaust i get in this range?

keep in mind i am going for something slightly louder than my OEM set up, but nothign crazy like gintani or such. i was wondering if the dinan x pipe with stock muffler was crazy. hard part is that drone (or maybe not drone but whatever it is) right in that specific range.

thanks guys

[SYZ]

wow, first I've heard of the MPE exhaust having tremendous drone. Every exhaust will have different resonating frequencies, so no, there could be a different RPM window where you experience this with another exhaust.

[yoelev]

Originally Posted by SYZ

wow, first I've heard of the MPE exhaust having tremendous drone. Every exhaust will have different resonating frequencies, so no, there could be a different RPM window where you experience this with another exhaust.

it was very surprising to me as well, since i bought that specifically because people told me there was no drone. i even had them look at the fitting to see if maybe there was a loose bolt or some such in there. no luck.