Wed Mar 12 19:44:28 1997 - Message No. 497
From: VIPER-1@universal.nl (Fels R. Th.B.)

Subject: Re: BSM EXHAUST


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                This E-mail came from :
                      Raymond Fels
      Geert Grootestraat 49 - 7009 MH - Doetinchem
                    The Netherlands
                 VIPER-1@universal.nl
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Hello Pierre,

Pierre DEBRAS wrote:
> 
> Hi Raymond,
> what about dB ?
> (I mean, noise).
> Pierre

We measured the dB with the vampire exhaust.
We did a 'referentie-meting' as we call it in The Netherlands.
( measure about 50 cm in an angle behind the exhaust at a sertain RPM. )
The vampire made 91,5 dB. It's a bit to loud, but because I get an
exhaust which is 5 cm longer,
my exhaust will be a little bit more silent.
The future was about 87 dB.
The orriginal exhaust about 81/82 dB.



Greetings from The Netherlands,
Raymond Fels.


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