If you wish to execute repairs to your CPI Formula R then it is always a good plan to have a Workshop Manual for personal reference just in case you need to know the best ways to take out a specific component such as the Gearbox and match it again in the correct way.
CPI Formula R Workshop Manuals can offer you precise diagnostic details for your car therefore if something is wrong it will help you work out what the issue is and some ways to make it better. You can then decide if this can be achieved by yourself or in the event the job is just too big you can make a booking for your Formula R into a nearby mechanic.
CPI Formula R manual