We at JC Remaps offer many services which include, custom re-mapping stages 1 & 2 mobile in 100% of England and Wales. Carbon engine cleaning is available when booked on its own in areas such as Stoke, Manchester, Liverpool, Newtown, Hereford, Worcester, Cannock, Telford, Shrewsbury, Crewe, Chester, Nantwich, Wrexham, Coventry, Leicester, Birmingham and other areas surrounding areas, DPF cleaning is only available in Shrewsbury/Telford/Oswestry. Mileage correction in Shropshire, DSG gearbox tuning is mobile in England and Wales. Our smoke boost leak detection is mobile in Shropshire. All remaps are mobile in all of England and Wales and Inc London, Cardiff, and all other major city's and towns. 

All our remaps come with FREE ( You must ask for this before we arrive asking after we've started the job may mean we cant Inc these. 

+CARBON ENGINE CLEAN (TERMS APPLY). Some engines may not benefit from this as this can often remove carbon which is holding a wound together as such, we will advise you on the day IF you ask for this before we arrive.


(This disables the functions and can save costly repair bills this is also done to add performance gains ( EGR delete may affect your MPG Or DPF)


(This is generally for vans with the 70MPH restrictions) Some restrictions are in the cluster as well as the ECU we  can only do the ECU 90% of the time its just in the ECU if not you will need to go to dealership for the cluster. 


(This is would be for vehicles with decat and will stop the engine management light coming on and will stop the car from over fuelling)


(POPS AND HARDCUT THE CAR MUST BE DECATTED IF PETROL COMPELTELY STRAIGHT THROUGH IF DIESEL IF NOT THIS WILL CAUSE MAJOR DAMAGE). These modifications can be carried out at our Shrewsbury garage's as we need a ramp, the process is normally done within 2 hours. Be aware pops are free, with some ECU's pops are not available so do not book if you only want pops as its not just our company its every company that can not add these to some ECU's we will only know when we try this.

These freebies must be requested on/before arrival if not we will not add them and you may risk being declined them.

We can also offer; 


(DPF MUST BE REMOVED FIRST OR WILL CAUSE MAJOR DAMAGE. You can not just delete the DPF it must be removed if not the turbo will blow up and cause major oil leaks and potentially destroy the engine) We can offer this removal service in Shrewsbury.


(This would be for vehicles fitted with this system and have removed the DPF so no longer need it. There are cases where the ad-blue can fail and will be costly to repair so again in this case it can be a option to delete it.


(The most common code we see is the p0401 relating t the EGR not working due to blanking or to much carbon removing this will then remove the engine management light, other codes can be removed that's relate to other problems.


We carry out exhaust modifications in our Shropshire garages, this will Inc DPF Removal, decatting, removal on the resonator and back box delete. We do not sell exhausts and we modify your pre existing one, we do not do dual exits or any sort of visual modifications. The modifications we do are purely for performance, sound and to prevent any damage or to upgrade to stage 2.  


This is designed to get the maximum


gains from your vehicle safely without the need


the need to make modifications this is safe and


all dyno developed with us, it all comes into line


with safety specifications outlined by the




This is now when you will need to made modifications to your vehicle this will be specific modifications which are, an upgraded air intake, bigger intercooler and exhaust modifications (DPF REMOVAL/DECAT).

 Some other mods maybe needed.


OBD will be the most easiest method of tuning a vehicle, if the tuning tools on the market have not managed to unlock the OBD yet then its a case of using BENCH, again if that's not yet unlocked its a K-Tag BOOT. 


In most cases this is because nobody in the industry has a way to access via the OBD, Or in other cases its when poor tuners lock the ECU When they have already tuned the vehicle.


[♻] Is your car smoking excessively?
[♻] Is your car heavy on fuel?
[♻] Is your car sluggish?
[♻] Has your car failed it's MOT due to high emissions?


[🚀] Increased power.

[🚘] Instant results.

[⛽] Improved mpg.

[📉] Lowers emissions up to 72%.

[📈] Smoother and better power deliverance.

[📊] Restored BHP.

[↕️] Revitalises engine and combustion chamber.

[💰] Better fuel consumption.

[💸] Help PREVENT blocked DPF's and EGR's
saving on costly repair bills.


We want our customers to get the maximum benefits from a remap. The results can be effected by dirty components and poor fuel delivery. Our Carbon Cleaning system ensures your engine is running at maximum power and efficiency prior to tuning. This service can also be used to solve a number of running issues, whether your car is remapped or not….

Unlike the basic hydrogen based engine carbon cleaning services you may have seen advertised, ours offers far more – with a number of separate solutions for Petrol and Diesel engines which can successfully clean:

  • Injectors

  • Intake valves 

  • DPF

  • EGR valve

  • Catalytic converter

  • Swirl flaps

  • Turbos

  • Inlet manifold 

  • Catalytic converter

  • Spark plugs 

  • Free MAF clean 

  • Free diagnostic's

  • Plus lower emission's prolonging life of engine and restores MPG and power.


DSG/BMW Gearbox tuning is custom - there are light modifications for the tuning that can be made to improve shift speed, responsiveness and smoothness of the gearbox and power delivery. Significant gains in torque delivery can be achieved; track day and sports enthusiast drivers will simply love it. Our DSG & BMW Gearbox remapping offers 70% improvement in shift speed and significant ¼ mile and 0-60 improvement. At JC Remaps, our DSG & BMW Gearbox remaps is measurable, demonstrable, and very noticeable - you will really enjoy these changes and that's a money back promise of 7 days. 



Are you worried you have a leak? Have you got turbo  boost issues or EVAP DTC? Can you hear a louder whistle noise than normal? Leaks as small as a EGR gasket missing or sowing needle size can cause issues and develop into bigger issues, these are next to impossible to locate. The only way is smoking, we use a professional machine to find these leaks and can be detected in minutes making it easy to replace.



If your DPF is blocked or clogged, you will typically see an orange light on your dashboard. The light is usually an icon that represents the DPF filter itself - a piped box with dots in the middle, but this varies and depends on the manufacturer. ​

98% success rate for blocked DPF units.

2 Months warranty. 

Free diagnostic included.


ONLY £150 in our Shrewsbury garages.