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      07-23-2018, 04:40 PM   #2202
paolotonzini
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Drives: 335i
Join Date: Jul 2018
Location: fl

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So do I have to get a custom tune or can I just run a mhd backend tune with my jb4 and be good to go with xhp stage 3? Will I get all the benefits of xhp I don't understand i see alot of old posts saying it didnt work well but there has been updates since then I didn't know if the issues have been sorted out im not interested in getting a custom tune.