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Wow, talking about getting a good read. Some of you guys say yea yea drone, others say no drone. Im having a hard time believing stock exhaust manifolds will make the system drone. If anything headers would. In either case, there seems to be no agreement between those here.



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.