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Exhaust and exhaust systems - performance
There are lots
of claims for exhausts...
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More
power! Well its true in some cases! With some explanation
needed. Bigger bore pipes and tubular manifolds are easier to push
exhaust gas out of. The engine has to do this so less power is
wasted and more waste gas gets removed from the cylinder allowing
room for more air to come in! On standard cars there is not
much to be gained usually here though other than noise... On
tuned engines, especially ones using "wild" camshafts, there is
however lots of power to be gained! In fact there is little
point in heavily tuning an engine, with big carbs, cams, bigger
valves etc, unless you DO fit a very free flowing exhaust system.
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Better
sound! Well
they are louder, so if this is what you want then yes they sound
better! Remember though that a engine actually makes the
sound, so an angry highly tuned engine will always sound much better
than a stock motor ever could. Don't expect a front wheel
drive 4 cylinder stock engine to sound like a well tuned V8!
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Longer
lasting! Well stainless steel exhausts do not rust so
could be longer lasting, but build quality makes as big difference
too. Well designed ones will not crack or fail.
Stainless steel ones sound tinny at first due to the harder metal
ringing on some systems.
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Catalyst
removal (or adding a bit of tube where your catatonic diverter used
to be!) These
things cost little power on a stock engine, but serious problems on
a tuned engine. Best to remove it if you plan on doing any real
engine tuning later on.
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