Originally Posted By 4mulaS
Art,
Yes I've kept He H pipe. Drone used to be real bad between 1700-2100 rpm. If I get some minor drone now it is around 1350-1400.

Do you think dropping the H improves that more?


No.

Adding the H pipe made my exhaust note quieter.

How shall I say it?... The H allows exhaust shock waves from the firings of each cylinder bank to partially equalize before they hit the mufflers.

My FlowMasters are louder than I want, but I prefer the "style" of sound that comes from going without the H pipe. So I'll compromise by going with quieter mufflers and delete the H.

Best,
- Art

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