HKS Hi-Power Exhaust
The sound with HKS DP and Race catalyst and Hi Power is simply amazing. I love it. I have HKS from turbo and back now with ecutek remap. Goes like hell.
A buddy of mine discribed the sound as the devil.
A buddy of mine discribed the sound as the devil.
Hello guys, I'm really interested in this exhaust. I've read raytrix review in this thread, however I ask you some questions:
1) I've already watched some clips but it's not easy to understand from that, so I'd like to know if in person this exhaust is very loud or not (with stock cat and stock downpipe): for sure I want that it's louder than the stock one, but I don't like if it is TOO loud and drones too much and create resonance in the cabin. I like "dark", deep tones, and NOT metallic/tinny sound and absolutely not droning. At the end, I want some good sound, but not so much that it becomes unconfortable and annoying: I don't use the car only for fun
but also for normal driving during the week. About cops, here in Italy they're "midly" severe, so the important thing is that if you drive carefully in eco-mode the exhaust is not too loud also from the outside.
Do you think that this exhaust can be good for me?
2) Is there any issue with the center pipe that is not stainless? Do you have experience if it will last for years without problems (rusting etc)?
3) I've seen that the only thing that I don't like of this exhaust, that is that mufflers look like sagging cans, seems to be solved or at least improved simply rotating the rubber supports. Any problem with this? The fitment is still good also after some time?
Thank you very much for your answers, I really appreciate your advice on this.
Stefano.
PS: raytrix, the carbon fiber roof rear roof diffuser that you have is the APR one? Thanks
1) I've already watched some clips but it's not easy to understand from that, so I'd like to know if in person this exhaust is very loud or not (with stock cat and stock downpipe): for sure I want that it's louder than the stock one, but I don't like if it is TOO loud and drones too much and create resonance in the cabin. I like "dark", deep tones, and NOT metallic/tinny sound and absolutely not droning. At the end, I want some good sound, but not so much that it becomes unconfortable and annoying: I don't use the car only for fun
but also for normal driving during the week. About cops, here in Italy they're "midly" severe, so the important thing is that if you drive carefully in eco-mode the exhaust is not too loud also from the outside.Do you think that this exhaust can be good for me?
2) Is there any issue with the center pipe that is not stainless? Do you have experience if it will last for years without problems (rusting etc)?
3) I've seen that the only thing that I don't like of this exhaust, that is that mufflers look like sagging cans, seems to be solved or at least improved simply rotating the rubber supports. Any problem with this? The fitment is still good also after some time?
Thank you very much for your answers, I really appreciate your advice on this.
Stefano.
PS: raytrix, the carbon fiber roof rear roof diffuser that you have is the APR one? Thanks
Last edited by therocket; Sep 14, 2009 at 04:58 PM.
Hey the rocket, Im currently running the Hks Hi power. and to answer your concerns I will try to attempt to answer them best of my ability.
The hks hi power is very loud in my opinion! It drones/throaty/resonates! But after I getting tuned... It's really tamed.. A lot more of that deep throaty V8 rumble. Check my sig. for my mods. But traveling around 65mph + WOT it screams like a banshee out of hell. Cruising speeds around 65-70 with partial throttle no drone! You must however learn how to control your foot because if you are going 70mph+ a slight increase of the pedal will cause it to Scream! for the cans they dont sag just rotate 180 deg. muffler hangers.! Also, the right tow hook I removed and the heat plate underneath the trunk... Since the tow hook is on the way of the right cannister... and the heat shield on the trunk makes vibrations...
The hks hi power is very loud in my opinion! It drones/throaty/resonates! But after I getting tuned... It's really tamed.. A lot more of that deep throaty V8 rumble. Check my sig. for my mods. But traveling around 65mph + WOT it screams like a banshee out of hell. Cruising speeds around 65-70 with partial throttle no drone! You must however learn how to control your foot because if you are going 70mph+ a slight increase of the pedal will cause it to Scream! for the cans they dont sag just rotate 180 deg. muffler hangers.! Also, the right tow hook I removed and the heat plate underneath the trunk... Since the tow hook is on the way of the right cannister... and the heat shield on the trunk makes vibrations...
Thanks for your answer 
So I'm more and more undecided if getting this or not... I like the straight design and the big round tips, and also the competitive price. For what I can hear from the clips I like the sound too because as I said it's very deep and NOT gurgling (correct me if I'm wrong).
So at the end my only doubt is that it's too loud for me; unfortunately I have no possibility to hear it in person before getting it
I think yours can be louder also because you have the TP in place of the stock cat: this usually makes a quite big difference.

So I'm more and more undecided if getting this or not... I like the straight design and the big round tips, and also the competitive price. For what I can hear from the clips I like the sound too because as I said it's very deep and NOT gurgling (correct me if I'm wrong).
So at the end my only doubt is that it's too loud for me; unfortunately I have no possibility to hear it in person before getting it

I think yours can be louder also because you have the TP in place of the stock cat: this usually makes a quite big difference.
Last edited by therocket; Sep 16, 2009 at 06:18 AM.


