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In my first post I meant Berk hfc. And yes they rasp a ton with the Ark. Im going back to stock cats for now until I can find a better option (maybe resonated hfc or double resonated tp)
This is what I was afraid of. I love the sound of my ARK with HFCs but I'm scared to get test pipes because I'm worried about turning into a rampaging fart cannon of legend. Just like when I added HFCs to my MXP, things went straight to hell then.
Test pipe with invidia gemini. Pretty loud and no rasp at all. Non resonated test pipe too