Hi People,


Im living in UAE and Cops here are worse than swine flu to live with!!

I was going to buy the "Silent" version of the HKS Hi Power exhaust series, but the sound is soooo dead that I dont feel the exhaust apgrade!!

I saw 2 videos on youtube for this exhaust, and I thought they were really AMAZING!!! Neither loud not dead-silent!!..

I will be attaching it to a MAP O2 eliminator, and probably stock Exhaust manifold!!

The problem is that I dont want to buy the exhaust and find another sound coming out!! As I mentioned, I only heard 2 clips and I did not hear one in person!

I will be ordering it from here, the states.. and I want to have a smart buy!!

Please let me know your impressions about this exhaust!!

I hope that moderators dont close this thread coz I have literally SEARCHED and didnt find what Im looking for!


*****
WHICH EXHAUST IS LOUDER, THE APEXI N1 OR THE BLITZ NUR-SPEC R???




Thank for your help

 

sorry to be off topic...but i have the fp clear...its not as fast as u say, but pretty close

 

lol, thanX for the pass

 

When you say MAP O2 eliminator, do you mean the MAP O2 dump, or a CEL eliminator for a O2 sensor?

If you talking about the MAP O2 dump ( the downpipe with the O2 dump built in) you better re-think that.

An O2 that dumps can be very very loud, sometime louder then exhaust systems.

 

Here's my **** sounding Honda exhaust.

Turbotrix t3 equal length manifold
Helix 3" dp
Magnaflow 4"x20" resonator instead of cat
Apexi N1 at rear

I can't stand it. Basically, 2 resonators = not-so-great sound. 4.5" outlet = a$$ sound. An outlet diameter on a muffler that's 1.5" larger than the inlet will produce a ***** sound (in my book). I ordered a silencer for quick fix, but will be doing a baffled muffler when I get time.

On a N/A car the exhaust gases pulsate through the exhaust system. On a turbocharged car, the turbo changes the pulse to a steady "flow." Resonators/glass-packs do very little to deaden sound. Their main job is to take the rasp out of the exhaust note. You need a baffled muffler to significantly cut noise and other frequencies. A center/off-set muffler will deaden sound more than a center/center inlet/outlet. Some baffled mufflers also have packing material to further deaden sound. Some even choke down 1/2" or so inside to deaden sound.

Oh, and you will get that highway drone with larger framed single scroll turbos, unless you go with a baffled muffler.

 

Even at idle/low RPMS, or just when screaming??

 

when i visited dubai when i was in the marines i saw and lots of cars louder then an evo with a n1 exhsust

 

Yes. I remember someone drove an SRT4 for a little group get-together amongst friends and he had an O2 dump. Although I liked the sound of that spooling turbo, it was loud constantly. He parked far away in the parking lot about 20 cars away from us and I could still hear how loud it was.

 

yea but if they get cought they get screwed :S

 

What he said, most O2 dump are very loud.

Also its not even necessary.

 

What if I dont go with the external dump? Recirculated?

 

Well, it'll sound more quiet then an O2 dump but personally, to me, it's still loud. I have a Megan CBE with a resonator and I wake the neighbor's up every time I go to work... I work at 2am too. Best thing to do is to put a silencer on. Might look like crap but at least it won't be too loud.

 

You mean the silencer I can attach/detach with a small screw??

If so, will I be able to go hard on the car once its installed?? A friend of mine told me that I cant open the throttle wide because there will be power restrictions!!

 

More Related info plz!!

 

There IS power restrictions because of air flow. A silencer restricts air flow to have it quiet down but at the same time, you lose performance. You'll still be able to get on it but it won't be the same as without one installed.

If you're worried about sound too much, you can try getting a cat to see if it'll be more quiet. Even with a cat, you still get air flow restriction. Or you can do what one of the guys around here did. He installed 2 Magnaflows on his exhaust. Otherwise, a resonator would be your best bet if you still want the performance to stay somewhat the same with idle sound to be more quiet then a catless.