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      05-07-2018, 03:41 AM   #4
bmwstve
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Drives: BMW X6, MHD Stage 2
Join Date: Jul 2014
Location: North

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Quote:
Originally Posted by jinuwin View Post
Running MHD Stage 1+... Be prepared to swap out new plugs and/or coils from increased load on the engine. Best you swap before tune unless you like to visit the shop every week lol. I learned the hard way but been able to run the flash okay since fixing misfires. Btw, Stage 2 is for upgraded downpipes so if you're stock stick to Stage 1.
Thanks for the reply!

is Stage 1+ really noticeable compared to stock?
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