I felt like i had to bring this to attention and i hope a knoledgable person can chime in on this one.

The story: I had bought a HKS Hi Power when they pretty much first arrived on the market(almost 1 year ago). I mated the setup with test pipes. A couple of months later i decided to switch to Topspeed which was uber loud and decided to purchase the HKS AGAIN about 2 weeks ago.

The concern/discovery: Has HKS been pressed for noice restrictions? My new HKS is MUCH quieter now than the last one i had. It sounds like the old HKS i had with OEM CATS and i have test pipes with the new one. I am concerned if their is more restriction on this new system anywhere on the mufflers or resonators which is something i was personally don't want.

I'll be making a few calls to HKS and see whats up. But i am curious if anything has really changed with their current systems.

 

Mine is freaken quiet too.....at cruise speed...quieter than stock. But when you push the gas hard...that's when it sings

 

Maybe it's just you getting used to an exhaust quieter than the topspeed? Just a thought...

 

Break in?

 

what alex said..it's all relative. mind is playing trick on you.

 

i agree. you must have gotten used to the topspeed exhaust. no major changes have occured as far as i know

 

That's what i've been thinking but i really doubt so. The difference is big.