We are experts in engine remapping of all types, be it car remapping or van remapping.

The normally aspirated engine, whilst not the easiest of engines to tune can still benefit from up to 15% more power and torque by careful programming of various engine parameters within the ecu such as its fuel and ignition maps, and in some cases the cam timing can also be tuned within the maps.

In many cases, conventional tuning items such as exhausts, air filters and camshafts need to be optimised for the engine via careful ECU remaps. Engine remapping will almost always unleash further power from fitment of those type of items on a modern vehicle so always have you car remapping done last.

Turbo diesel tuning. Our diesel performance chips & diesel remapping via the OBD port will dramatically improve your vehicles performance & economy.

Here at Polimax/Evolution Chips we specialise in diesel performance chips, diesel remapping via OBD port and general turbo diesel tuning and we pride ourselves in doing so without spoiling any of the principle reasons for buying a turbo diesel powered vehicle in the first place. We believe that key points such as their fabulous low down tractability, their reliability and of course the all important fuel economy should never ever be compromised.

Turbo Petrol Tuning.
We create, sell and fit engine performance chips and can perform an OBD performance remapping on most petrol turbo powered vehicles.

The modern turbocharged petrol engine is a fantastic base for tuning and they generally respond extremely well indeed. Most engines require just an Evolution Chips performance remap (or engine performance chips when not OBD Equipped) fitting to achieve some great power and torque gains. We're experts when it comes to carrying out a performance remap, turbo petrol tuning or fitting our engine performance chips.

• More Horsepower
• More Torque
• Improved Throttle Response
• Smoother Power Delivery
• Safer Overtaking

The improvements above are all achieved by very careful matching of parameters such as boost pressure, fuel delivery rates & Ignition timing along with adjustments to maps that electronically limit torque, throttle response and top speed. All this information in your ECU calibration file is carefully optimised to our exacting standards and then programmed back into your ECU. The vehicle is then tested before we send you on your way.

When You take Your vehicle Away, You Will leave With:

• A 7 Day No Quibble Trial Period Available.*
• A Lifetime Warranty On All OBD Port Remaps.*
• Guaranteed Better Fuel Economy On All Diesel Remaps.

If you are worried about insurance, don't be. We are backed by one of the UK's leading performance car insurers who are happy to quote all cars that are modified by an authorised Evolution Chips agent at the same price they would have paid for a standard unmodified example.


As a final note, please, before buying any performance chips or having any OBD remapping done, please take a look at our "Remap buying considerations" page to ensure you don't fall into the trap of buying from a tuning company that may damage your vehicle.

* Does not apply to hardware. Only OBD Installed Evolution Chips.