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You'd be better off playing with resonators to kill drone, like a vibrant ultra quiet resonator added on-top.
The JDM hangers from my experience kill 5-10% of drone if that. Tagrets very specific frequencies.
I've tried different combinations of stock vs JDM. Currently I have just the rear two muffler hangers swapped with JDM style. The OEM are stiffer and keep the exhaust from moving around too much.
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