Why buy an after-market exhaust system? Surely
the manufacturer's OE (original equipment) system
will be the best for the bike?
Of course, in the majority of cases,
the reason is that manufacturers are
bound by the increasingly stringent noise and emissions regulations that
govern their products, and a restrictive exhaust
system is obviously a key part of this equation. So fitting
an after-market system is often the quickest and
easiest route to liberating more performance from your
An important consideration is whether an
after-market exhaust system is to be a straight
replacement for the OE system, or whether it will
require additional modifications to the engine. Such
additional modifications will usually take the form
of a substitute ECU (Engine Control Unit) chip, or a
Power Commander, and possibly a high-flow air filter
on the intake side. Not only will this ensure
optimal peak performance, but can often improve
engine characteristics in the mid-range too, as now
manufacturers often have to tune their engines for
emissions compliance at certain specified revs, but
these settings don't always mean the engine is
actually performing at its best.
Correct installation &
Simply fitting a new exhaust end
can - and especially a full system - without
correct set-up of the engine can actually impede
performance, and in extreme cases could even damage your
engine, if it causes it to run too lean or too rich.
Proper installation and set-up is essential.
In addition to supplying systems from the leading
after-market system manufacturers listed alongside,
JHS can advise you about the most appropriate
exhaust system for your motorcycle, and install and
optimise the exhaust for you using our dyno testing
facilities. Dyno charts are provided that will
clearly illustrate where the new exhaust system has
delivered benefits, and correct set-up and
optimisation of the engine will ensure that you see
the full benefit from it.
JHS Racing are authorised dealers and installers of
these performance motorcycle products. We can also supply and fit exhaust
systems and end-cans from any other manufacturer -
please contact us to discuss your requirements.
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