i dont know. probs best to have it tuned.
i bought mine ages ago. i put it on an untuned td04 and never got it tuned till i got a new motor. (no, old motor did not die as a reslut of that) I was just saying that i noticed a difference in my times at whoop arse going with just a tmic upgrade alone.
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Doing it for all the wagons out there
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