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Will xHP work with my specific engine tune?
Yes, xHP will work with any engine tune. The most common tuning applications are:
MHD - Has a checkbox that needs to be ticked to ensure optimum performance. See the next question below.
BM3 - Works out of the box with xHP and Stage 2 and higher. BM3 also recommend using xHP Flashtool along with their engine tunes.
MGFlasher - Also works out of the box.
See our line-pressure article for more in-depth details regarding communication between ECU and TCU.
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With MHD, which "transmission selection" should I choose?
For most cars, MHD offers a unique "xHP Transmission Setting".
In all other cases, select "Manual Transmission" in MHD. (yes, this is not a typo)
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I already have a flash tune (MHD, BM3, MG flasher, custom tune, etc.) on my ECU (engine). Do I have to uninstall it before using xHP?
No. xHP does not directly affect your existing engine tune, and the order in which the engine and transmission tunes are flashed does not matter.
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I've got a JB4 installed. Can I flash xHP?
Yes, xHP will work on JB4-equipped cars, but you must remove and reinstall it before flashing. Setting JB4 to map 0 “map 0” was not enough on our test cars, as JB4 still interfered with communication with the TCU. This might depend on the JB4 revision you are using.
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Back to the xHP Flashtool - FAQ - OverviewPage.
Back to the Overview Page.