I find that RM01A is quiet as mouse when idle but when VTEC kicks in, thats a whole different story, it screams! Having said that, when revving it hard, its quite loud (I would rate it moderate) but not those kind of loud that makes your ears feel like exploding. I think it has a nice racing noise and suit my liking.
Personally, I like this type of exshaust and I am really happy with it. Plus now with the RAWRRRR of the GruppeM....feel like Vtec it all the time...LOL
I am yet to dyno it but really haven't got time these days...hopefully i can spare some time in near future.
It's good you mentioned that. I wanted that exhaust which on idle, is not raspy, tinny, loud and ricy. I think this exhaust is the way to go. When vtec kicks in with this exhaust, I'm assuming its not like an unpleasant sound, moreso satisfying!
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