Any issue with this combination? I have the ark grip and was thinking of adding the ark hfc but don't see any reviews on them.

None at all! You will get the ses light for having them but once you tune the csr they will go away.

So you dont get any rasp or hiss like some other hfc right? Thats my main concern, i love the clean Ark note that I have now so I do not want to make it all raspy trying to squeeze out more hp. Someone told me even Motodyne Art pipes still produce some rasps. I dont mind the ses light I'm planning on getting a tune anyway. Cheers!

every hfc produces a hiss as well as tp's. It doesn't matter what type or what configuration. The reason is that catalytic converter acts like a air filter for your exhaust and that's why you normally don't hear it. If you have a shorter one you have less filtering which equals more hiss. I get a little hiss with medium throttle. When I am wide open it hiss's but I have pretty much come accustomed to it. Its worth the hp gain. Plan on installing your hfc's the day you get a tune. I drove my car for a while when it was leaned out and it isn't good for the car. So yea hope this helps. I love my exhaust!

Thanks Bro. I understand it better now.