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I'm seriously considering changing to '11/'12 single-tip GT500 mufflers as my next mod but don't want to do it if the change will result in any drone since I do a lot of highway driving. I'm currently running 5/8" side exhaust plates and may go to 3/4".
Do those of you running a similar set-up have any drone at highway speeds?
Do those of you running a similar set-up have any drone at highway speeds?