Bristol motorcycle servicing, dyno tuning, tyres, performance parts Bristol's independent motorcycle service & tuning specialists             Home  ::  About us  ::  Contact  ::  Find us  ::  Links  ::  Terms  ::  Site map
Racing motorcycle building & track preparation.Racing & track day motorcyclesRace & track motorcycling preparation & tuning

 

Aprilia, Harley, Honda, Kawasaki, Yamaha, Suzuki, motorcycle servicing in Bristol

We service all Japanese, US or European motorcycles including Ducati & Aprilia...
 

Avon, Pirelli, Bridgestone, Michelin motorcycle tyres in Bristol

Road and race tyres; all leading brands; Avon, Bridgestone, Michelin & Pirelli...
 

Authorised Dynojet rolling-road tuning centre

Fully authorised & equipped Dynojet Tuning Centre. Dyno test your bike...

 

  Found it cheaper?
If you've found any of the products or accessories featured on our site cheaper elsewhere on the web please contact us before you buy - we'll try to beat that price!
 

 

 

 

 

 
 

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 way to liberate more performance from your bike's engine.

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 & optimisation
Simply fitting a new exhaust end can - and particularly a full system - without correct set-up of the engine can actually impede performance, and in extreme cases can even harm 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 products. We can also supply and fit exhaust systems and end-cans from any other manufacturer - please contact us to discuss your requirements.














 

 
 
 
 
 
Home : Servicing : Parts : Tuning : Tyres : Racing : About : Contact : Find : Links : Terms : Sitemap

design :: westernaspect

JHS Racing Limited, Unit 3, Unity Court, Broadmead Lane, Keynsham, Bristol, BS31 1ST
Registered in the UK no. 6399852
Tel: 0117 986 8844         email: jhsracing@lineone.net
Copyright © JHS Racing Limited
All material on this web site, including the site design itself, is copyright and may not be used without permission