Petrol
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Superior Performance
Performance is our passion and we work to get more out of your engine. Optimise your petrol engine today for more power, torque and fuel economy.

Adjustable Tuning
The Tunit Optimum Plus is easy to fit to any petrol vehicle by simply plugging in to the OBD port. The Optimum Plus uniquely can be adjusted from your phone Eco to Sport Plus.

Go Eco
Easily switch between Eco, Sport and Sport Plus from your phone. The Optimum Plus provides a unique ability to fine tune to your needs.
REVIEWS
Joe,VW Golf
Instant power great bit of kit wish i brought one years ago!
Nigel ,Ford Focus 1.6TDCi 110BHP
Hi Dan, Thank you for your help regarding my Focus. I managed it in the end and rang John at Wincanton to thank him and explain. The Tunit is excellent; 65.5 mpg over 55 miles to Bristol at normal speeds and 63.5 mpg at normal speeds on the motorway to London the following day. Overall this is 8-10% better than before. Brilliant!