Quote:
Originally Posted by forza370z
I agree. It's hard to tell. I could tell the differences between HKS and its replica Xo2 for g35 coupe from their tips. Definitely they are different qualities. But there are too many HKS knockoffs for the 370z and it's hard to tell...
OP, if it's autheticate HKS Hi-power, congrats! It's a $1500 exhaust system and one of the best looking/sounding exhaust out there.
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Sound clip would honestly clear it up. Authentic HKS sounds REAL smooth and Subtle. Top Speed is loud and aggressive.