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For what it's worth, I had two cars with super turbos, one was 440, headers, 2.5 inch...no drone. The other was 440, stock hp manifold, 3 inch--------and the most unbelievable god-awful drone you could imagine. Horrible. Switched that one to headers, 2.5 inch and magna flows...no drone.



So, you changed everything int he exhaust system? If so, it seems you can't narrow the drone issue to anything specific.


My opinion, FWIW, is that drone is more a design of the system in whole than any one specific part.



I agree. And the experience that I posted would seem indicate that super turbos may or may not drone depending on the rest of the system. I am a firm believer that larger pipes are more likely to drone than smaller.