Hi guys

Was just on the Jap HKS site and saw that the Hipower Exhaust had another word added to it : "SILENT"

I checked some details and found it was rated at 95 decibels, had the JASMA approved stamp on it too.

US Version

32003-KH010 HONDA S2000 2000-2005 2.0 ; Dual Exhaust HP Tip Diameter:96 Piping Diameter 60

Japanese Version

Silent Hi Power

32016-AH004 HONDA S2000 2000-2005 2.0 ; Dual Exhaust HP Tip Diameter:94 Piping Diameter 60-50 x 2

Hi Power 409

32003-AH007 HONDA S2000 2000-2005 2.0 ; Dual Exhaust HP Tip Diameter:94 Piping Diameter 60-50 x 2

Difference between the silent and 409 model seems to be the different material used, where Silent uses SUS304 and where 409 uses SUH 409

Seems like the main differences are 60 piping to 50 near the end for the jap models where the US ones must be just 60 all through.

Also the tip has become smaller for the Jap models.

Any more light someone can shed on this?

Thanks!

 

im not too sure but a buddy of mine when he picked his up overseas and brought it personally here, his hks hi-power is full stainless steel everything (currently the hks hi-power offered here consist of mild steel piping and stainless canisters)

 

^^^That is correct.

 

No, that is not correct. Both the HKS Hi-Power pipes I've bought have been the Hi-Power 409 (labeled right on the box). If you take a look at the Japanese HKS site and do a google translation you will find that the pipes use 304 for the canisters and the less expensive 409 for the rest of the piping (coated as well). The whole exhaust is stainless, it's just two different grades for the different parts is all.


ron

 

Are there different versions(as in, generation or revision) of the US hi-power?
I'm about the purchase one, but don't want to shell out $$ on an older version(I've heard that there was a hyper(?) exhaust).
So basically, if you get the HKS hi-power exhaust w/ the laser etched HKS logo at the canister, it IS the newest version, right?
TIA

Dan

 

I checked out HKS's Japanese website and I can't find anywhere that says that the intermediate piping is coated 409 stainless. Why would you coat 409 stainless anyway? It sounds like a really weird setup if that is indeed what you have. But you have the exhaust so I believe it's true, it just sounds weird.

The setup I was thinking about is the Silent Hi-Power, which is all polished 304 stainless. It is the new version of the Hiper exhaust, the original S2000 HKS JDM exhaust (which I think was also completely polished 304 stainless as well).

 

Look carefully its there

As I said the japs brought out two models the silent hi and the hi power 409. Just the difference in which type of aluminium tickles your fancy.

The 409 version has the piping as suh409 and the tips sus304.

On the contrary the silent hi power has all sus304 tips and piping.

As for the difference in model numbers, must be some little differences:
US dont need JASMA approved stamp on the muffler and the US one might have 60mm piping all the way through compared to 60mm pipes joining upto 50mm muffler section.

 

i recommend getting the silent hi-power cuz it's all sus304. the 409 part of the exhaust looks like shit after a while

 

Yeah I found it, it was hard to understand. I don't know what you mean by "kind of aluminum", the difference is really 2 things:

1) The silent hi power is sus304 the entire way, where the hi power 409 is not.

2) The silent hi power has the silencers already built into the mufflers.

 

Back when I was looking into the HKS pipes I did a little googling on the different grades of stainless and what I found was that the 409 is just a lessor grade of stainless than the 304. IIRC it sounded like it's good for detering structural rust out, but it can still develop a bit of surface rust which of course wouldn't look very nice, so they just coat the whole exhaust except for the 304 cans/tips.

As far as the built in silencers go on the silent Hi Power you mention, if that's really the case I think I'd definitely want to hear one before putting any money down. The regular hi-power sounds pretty darn nice without any silencers and is really not loud at all (to me anyway, and I'm an older guy ). It would be a shame to "silence" all that nice tone away...


ron