As far as I aware (please correct me if I am wrong) there is no noise
limit quoted for MOT test and it is not measured. I have heard of an
Astra being failed because the exhaust was significantly noisier than
other Astra. It would be difficult to do this with a kit car as it's
unlikely testing stations will be able to use that criteria.
Obviously,
new cars have to go through IVA which does have a noise limit and
test.
Bob (Q2-267)
----Original Message----
From: [email protected]
Date: 19/08/2011 8:51
To: <[email protected]>
Subj: Re: [Quantum Owners] Quantum 2+2
Hi Paul,
Interesting what you say about the exhaust sound. I had a problem
with project coupe over the exhaust sound at MOT. They flagged it
as
too loud. Strangely, this was the same garage that has been
passing
my son's coupe with a stainless magnex single box system year after
year. The MOT test is subjective only - no measuring instruments
required. (or indeed owned by the garage!) At home we both think
they
are the same loudness subjectively. So I am not sure what is
happening there. Think it might be worth getting or borrowing a
meter.
When we looked into it you can retro-fit another box, even a
straight
through in the tailpipe that should make it quieter. So that's a
possible option. On the web there are many custom exhaust
manufacturers with different size and shape boxes. But many will
not
fit well under a Q. You are quite resticted for space unless you
have
it low slung.
By contrast my 2+2 has a standard aftermarket mild steel system.
OK
they don't last as long, (mine has been doing 4 years) but they are
1/3rd the cost of a SS system and have more meat to them so are a
different note and much quieter. It's also a single box system. I
did a DIY fit last time and it was easy.
Derek
On 18 Aug 2011, at 20:45, PAUL WILLS wrote:
Hi Hans, Thanks for the info. Can't remember what make the
exhaust
is but was sold as a sports exhaust. Once I change it, it will be
up
for sell. Its as new, only been on the car a few months. Its a
single rear box system.
Paul.
--- On Tue, 16/8/11, hansdefauwes <[email protected]> wrote:
From: hansdefauwes <[email protected]>
Subject: Re: [Quantum Owners] Quantum 2+2
To: [email protected]
Date: Tuesday, 16 August, 2011, 15:22
Hi paul,
just buy a standard XR2 exhaust from Bose or so - gives a lower
noice level
What exhaust do you have?
interesting in selling it?
Hans
----- Original Message -----
From: PAUL WILLS
To: [email protected]
Sent: Tuesday, August 16, 2011 4:03 PM
Subject: [Quantum Owners] Quantum 2+2
Hi, just got my 2+2 on the road for the first time. I have fitted
the 1600cc cvh engine, with what was sold as a sports exhaust.
Dislike the loud exhaust note, can any one recommend a quiet
exhaust
for this engine. I believe the original xr2 exhaust was quite
loud.
Rgds Paul.
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