JHS Racing Bristol & South West motorcycle workshop and performance centre Bristol & Bath motorcycle MOT test centre
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Motorcycle MOT test Bristol

JHS Racing are UK suppliers of high quality performance motorcycle parts & accessories:

Ohlins suspension sales & service Bristol Hel motorcycle brake lines Bristol
M4 motorcycle exhaust systems Brembo motorcycle brakes sales & service Bristol
Yoshimura motorcycle exhaust systems
Akrapovic motorcycle exhaust systems Dynojet Power Commander sales & service Bristol
Remus motorcycle exhaust systems Sigma motorcycle slipper clutch

M4 motorcycle exhaust systems end cans  

M4 Motorcycle Exhaust Systems & End Cans

M4 exhausts: full racing exhaust systems

JHS are the sole UK agents and importers of these very high quality, US-made performance exhaust systems.

We use M4 pipes with the Supertwin machines that we build. We choose M4 because the dyno shows that no other pipe can deliver such dramatic gains from the Suzuki SV650 engine, while offering outstanding build-quality at a competitive price.

M4 exhausts are available for a range of fitments and motorcycles.

M4 slip-on end cans

Slip-on end can kits from 250.00 (call for details).

M4 full race system for the Suzuki SV650 from 673.02

M4 oval silencer cans are available with Polished Aluminium, Carbon Fibre or Titanium sleeves.

System Features

  • 304 Stainless steel construction

  • 2 into 1 design

  • Stainless steel end caps (polished)

  • Stainless steel silencer core

  • Oval silencer design. Polished Aluminium, Carbon or Titanium.

Standard, Race and High Sport System comes with mounting hardware & instructions.

Please contact us for prices or visit our Online Store for details of specific products available for your bike.



 JHS Racing are authorised dealers and installers of M4 motorcycle exhaust systems

M4 motorcycle exhausts logo
Click here to visit the M4 web site for further information about products, fitments and applications.

M4 exhaust cans & systems

M4 exhausts - finish options

All M4 systems will increase power output of your motorcycle over its stock system, but to gain the most benefit we recommend that the system is installed by one of our expert fitters and the bike is then checked on our dyno.

Find after-market exhaust systems specifically suited to your motorcycle from our online store ... click here to visit

< Back to Exhausts Overview page

  2017 Isle of Man TT.   20-05-2017

The JHS Racing road racing team will again return to the Isle of Man TT Races, fielding experienced road racers Michael Russell and Dave Moffitt.

JHS would like to thank Optimum Access for their continuing support for the team. Optimum Access specialise in unique security access systems for your premises. ...

Read more ...


  JHS Racing Limited, Unit 3-4, Unity Court, Unity Road, Keynsham, Bristol, BS31 1FU

0117 986 8844

Registered in the UK no. 6399852
All material Copyright © JHS Racing Limited

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