For an upcoming project car of mine, I'm trying to build a pretty quiet 3" diameter full exhaust system.
I'll be using a Summit 3" headerback system (SUM-680141-NM), accompanied by an X-pipe, a pair of Dynomax 23" (Edit: 27") long Super Turbo mufflers (17769) and a pair of Dynomax 3" Race bullets (24215) acting as resonators in the back next to the fuel tank.

Is anyone running such a similar exhaust system perhaps and what are your findings/ideas?