Just registered to the forum to say thank you to the OP. This has helped with my setup, the hangers made a noticeable difference in the cabin noise level. I am running PSR catless UEL headers + Perrin 2.5 catback. I have been running this for a year or so but over time the exhaust had become too boomy for my liking, between 2K and 3K RPM and I was about to revert to the stock exhaust. It's probably more to do with the novelty wearing off rather than the exhaust getting noisier to be honest. I was running the perrin hangers too as my previous attempt to solve the cabin vibration (a lot stiffer than both OEM versions). I installed 4 for now.
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