Originally Posted by dropnosky

worth checking local inspection rules. Removed the entire exhaust system and put in a 2.5" straight pipe on an 83 300D, only to discover that in order to pass inspection, I needed at least one muffler or muffler like object. Put in a twin tip resonator instead.

I only say this cause its annoying to have to go back in and adjust for a pesky rule. Might as well check and see if there are any, I was completely surprised they cared for a car that old, but I guess noise is noise. The resonator fit the restrictions without damaging the note of the exhaust I was going for.