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-   -   HKS Hi Power louder than Greddy SP2? (https://www.rx8club.com/series-i-aftermarket-performance-modifications-23/hks-hi-power-louder-than-greddy-sp2-214511/)

jayscoobs 04-05-2011 06:51 PM

HKS Hi Power louder than Greddy SP2?
 
Hello all, I have a Racing Beat test pipe paired with the Greddy SP2 and I want to switch my catback to HKS Hi Power or the RR Single exit. Will switching my catback to HKS be significantly louder than the Greddy? If it is im considering going back to OEM cat until I can get a Dual Resonated midpipe. Youtube videos dont do justice.

mushkid 04-05-2011 07:09 PM

she will be loud!!!

jayscoobs 04-05-2011 08:56 PM

What about with Dual Resonated Racing Beat or BHR dual resonated.

jayscoobs 04-06-2011 12:18 AM

Damn no comments on this? lol

mushkid 04-06-2011 04:49 AM

with the racing beat midpipe, the sound will be at a tolerable level. RB Dual rez midpipe is the quietest midpipe you can get.

as for BHR, i have heard nothing but Positive opinions about it. it's also a quiet mid-pipe.

give any of them a try, you wont regret it.


Originally Posted by jayscoobs (Post 3936073)
What about with Dual Resonated Racing Beat or BHR dual resonated.


L337fpc 04-06-2011 05:05 AM

I switched from Greddy SP2 to HKS. Single exit will be louder than dual, hands down. I also tried the stock cat, the stock header, racing beat header, my exoticspeed race pipe, and racing beat's dual resonated midpipe. Here are some video's you should watch:

OE Header, ExoticSpeed Mid, Greddy SP2:
http://www.youtube.com/watch?v=aqRSo6iS1T4

OE Header, ExoticSpeed Mid, HKS Hipower:
http://www.youtube.com/watch?v=F0TzWdT7Ej0

OE Header, Racing Beat Mid, HKS Hipower:
http://www.youtube.com/watch?v=lkEoYCAoKds

If you throw a header (Racing beat's for example), you really really increase the volume:
http://www.vimeo.com/13059111

Finally, if you wanted racing beat header, exoticspeed mid, and hks hipower:
http://www.vimeo.com/21846970

That should answer your volume questions for a bunch of exhaust configurations.

jayscoobs 04-06-2011 12:50 PM

I know its really hard to tell on youtube on the different setups. so to your own ears in person which setup seemed the quietest to you? Boosted will happen on this car so I want a setup thats quiet for unwanted attention purposes.

L337fpc 04-06-2011 12:54 PM

oe header, rb dual resonated, and hks hipower. I could hear my intake again! After swapping the header...i really couldn't hear my intake any more.

tl;dr - racing beat dual resonated or bhr. I plan on buying a bhr pipe or the resonator soon.

jayscoobs 04-06-2011 01:24 PM

Yeah I think that would be the best combo. I have the opportunity to get the exoticspeed catback but I read it had fitment issues. Hmmm

jayscoobs 04-06-2011 03:57 PM

No rasp with the rb mid and hks hi power right?

L337fpc 04-07-2011 04:58 AM

not really...there is some after 8k, but hiding the rasp of a rotary...is a challenge

jayscoobs 04-07-2011 04:54 PM

im okay with the 8k rasp. I dont like hitting a major rasp wall at 4k haha. Winding out the motor it should have rasp since its rotary.

RenzoRx-8 06-04-2011 01:36 PM


Originally Posted by L337fpc (Post 3936293)
I switched from Greddy SP2 to HKS. Single exit will be louder than dual, hands down. I also tried the stock cat, the stock header, racing beat header, my exoticspeed race pipe, and racing beat's dual resonated midpipe. Here are some video's you should watch:

OE Header, ExoticSpeed Mid, Greddy SP2:
http://www.youtube.com/watch?v=aqRSo6iS1T4

OE Header, ExoticSpeed Mid, HKS Hipower:
http://www.youtube.com/watch?v=F0TzWdT7Ej0

OE Header, Racing Beat Mid, HKS Hipower:
http://www.youtube.com/watch?v=lkEoYCAoKds

If you throw a header (Racing beat's for example), you really really increase the volume:
http://www.vimeo.com/13059111

Finally, if you wanted racing beat header, exoticspeed mid, and hks hipower:
http://www.vimeo.com/21846970

That should answer your volume questions for a bunch of exhaust configurations.



When you say exoticspeed race pipe do you mean the racing midpipe "cat delete" or the racing midpipe "catalyzer" ? Im a little confused on the two they offer on their website.

L337fpc 06-05-2011 09:38 AM


Originally Posted by RenzoRx-8 (Post 3996498)
When you say exoticspeed race pipe do you mean the racing midpipe "cat delete" or the racing midpipe "catalyzer" ? Im a little confused on the two they offer on their website.

race pipe is a cat delete...racing cat is a high flow cat which is emissions legal in most states.

RenzoRx-8 06-05-2011 01:08 PM


Originally Posted by L337fpc (Post 3997020)
race pipe is a cat delete...racing cat is a high flow cat which is emissions legal in most states.

Thanks l337fpc, i figured that. I just wanted to be sure. Your racing beat header/racing beat dual res and hks hi power setup sounds sick. Real deep from what i see in the video. Hella loud tho


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