I talked to HKS about my hi-power cat back. My 1st problem was that it wasnt loud at all. it sounded almost stocked. But like they said at 3000 miles it will get louder. It did. Now i want to know how many horses did it add about> i have a Gt..i have cold air and the hi power cat back. I cant afford a dyno run so any1 out there no about how many horses do i have now?
Trog is right. I have the HKS also(payed way too much). It's not very loud and it will not get much louder. I've had mine for about a year and it's not much louder than when I got it. I haven't had any rust yet.
I'm gonna take your little Civic. Dust it off. Turn it sideways and stick it straight up you candy A*s.
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