25th Nov 15 Hi Andrew Just a quick note to say how pleased I am with the tuning box. It makes a noticeable and worthwhile difference and improvement to the Santa Fe. It is definitely quicker especially around the mid range and accelerates stronger up hills and maintains the rate of acceleration where before it would tail off a bit. It isn’t a huge performance hikean extra 30 bhp spread over 2 tonnes doesn’t go far! It does give the car more urge and I feel safer going for overtakes than I did before it was fitted. Early days but economy according to the trip computer has gone from being forever in the low 29’s to now showing high 31’s over the same driving journeys and style, if anything a bit faster! I’ve posted on a Hyundai forum and if anybody asks I’ll let them know where I got it from. Kind regards Neil