HKS Hiper Exh.

Does anyone have one? Do they like it? Are they loud as, say a Greddy MX? I have an MX and I am kinda wondering about the HKS, as far as noise level, tone, power gains etc…

i got one, sounds great, deep, low sound. not as loud as n1’s but not as soft as greddy pe on civics and such. but i think it looks great and i love the offset on it. as far as gains, its gives pretty good highend especially if u got vtec