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About Us


“As Nottingham’s  Premier  ECU tuning company, we at Castle Street Tuning pride ourselves on the expertise in the field of ECU remapping .

We specialise in the performance tuning of engine management systems, improving the efficiency of the engine, drivability, BHP power output, torque and fuel economy of all types of petrol and diesel engines.

We use the very latest techniques and equipment to make it simple to have your car engine tuned – reliability is never compromised and nearly all cars can be done without being traceable. Our software is all custom and tailored to suit your needs and we develop most software in house as well as working with the biggest tuning companies worldwide. Our Technicians pride themselves on being reliable, friendly and providing top quality and guaranteed software.