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Old 11 October 2007, 13:24   #1
marcSTi3
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Default HKS jasma exhaust real?

firstly i want to say hello as im new to scoobynet

right i want to know if my HKS silent hi-performance zaust is genuine, it doesn't say HKS muffler on the back box like some of the pics ive seen of them but it came with a HKS cert & a JASMA cert, all it has on the back box is a jasma plate with cert number & silent hi-performance stamped on.

i wanting to swap it for another exhaust to a lad who has a nur spec s & a tsl motorsport middle section as he wants something quieter (he's old) but he thinks it's fake, im after something a bit louder, all the numbers match up but in the world of snide copys you can get anything to make it real.
so what do you all think?

thanks marc.
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Old 11 October 2007, 14:00   #2
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I understood Jasma to be some sort of standard rather than a brand.

You see many JDM cars with "Jasma exhaust" but its not a tuning brand.

Whether your exhaust is made by HKS I don't know.
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Old 11 October 2007, 14:08   #3
marcSTi3
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on the HKS cert is say's "muffler" & i had a look on google about jasma & i think it's to do with the DB, street legal in japan is 96DB & jasma must be some sort of testing to make sure it's under that, i think that's what it could be but i could be wrong, but thanks Edd
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Old 11 October 2007, 14:16   #4
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Does it look like this?
Click the image to open in full size.
Click the image to open in full size.
If so it's genuine.
Bought mine here in Japan.
Bl@@dy good exhaust!

JASMA is not a brand. It's a certification authority which gives after market exhausts a certificate of compliance. i.e. below legal decibel limits.

Last edited by coolangatta; 11 October 2007 at 14:20.
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Old 11 October 2007, 14:56   #5
marcSTi3
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yeah looks like that cooly
i can see the little jasma plate on the bottom of the back box but i can't see silent hi-power on both sides of the pipe though, your's is nice & shinny too

i herd there good & expensive but as long it's genuine im happy with that.

thanks everyone. marc
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Old 26 October 2008, 12:52   #6
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Hi i have a fujitsubo exhaust on my car but like the other replys the jasma is a stamp for the noise levelof your exhaust.My stamp is on the base of the exhaust also i have the certificate.
Hope this helps
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Old 26 October 2008, 12:55   #7
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JASMA is the japanese body that approves Exhausts,
Japanese automobile sport muffler association
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Old 26 October 2008, 14:34   #8
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heres mine off the car and it does not say hks.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
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Old 27 October 2008, 13:15   #9
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Another one:

Click the image to open in full size.

Click the image to open in full size.
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Old 27 October 2008, 16:51   #10
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Mate that is a hks as i had the same on my car, but i changed the back box as it was too quiet.
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Old 27 October 2008, 16:51
 
 
 
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2008, certification, db, exaust, exhaust, exhausts, hipower, hks, jasma, jasmajapan, jdm, omments, sale, silent, subaru


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