Quote:
Originally Posted by WallsAndFoundations
Look into Helmholtz resonators! They will demolish the drone and keep the car loud with a refined sound. Currently my 16 ss had kooks long tubes with off road pipes, Borla x pipe, no mufflers, and 2 Helmholtz resonators and I have 0 drone at cruising speeds. I can whisper to my passenger
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Helmholtz/J-pipe. Take your pick. Both are cheaper than buying a brand new system.