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Has Anyone Fitted A Tuning Box To A Mk3 1.6Tdci

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Hmm, not a fan of tuning boxes vs remaps. Essentially it just overfuels, which on a diesel is not the end of the world as they're open to atmosphere anyway (unlike a petrol which is not and controlled by throttle flap) but there's no increase in boost to accompany the extra fuel. Been behind a couple of older cars with them and they were proper smoky. some cars even throw up a fault code as the ECU knows the false readings it's getting from the MAF are not right.

If you can afford it, get a proper remap.

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