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zse8h zse8h is offline
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Posts: 19
Join Date: Apr 2021
Car: M5501
Default Yesterday, 12:46 PM

Sure wish I could upload videos here so I could show you all my GPower Sport Silencer Axel back exhaust. It's lovely.

2021 M550i
Bernina Grey Amber Effect
GPower High Flow Air Filters
GPower Axel Back High Flow Sport Silencer
JB4 - Stage 2 tune

2009 335xi
Completely Moded out
Beat corvettes - they were pissed
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Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
Posts: 19,689
Join Date: Oct 2012
Car: 135i
Default Today, 09:13 AM

Originally Posted by capitalst
I finished putting the JB4 into my X5 M50i. I did plug the OBD2 in and wonder what performance gains it really provides vs not plugging that part in? Thoughts on what it actually does performance wise besides engine gauges on my iPhone?

Allows you to change maps and allows the JB4 to monitor engine data.

Example...if you run lean and that's not plugged in, the JB4 won't kick you to a safe map because it will never know.

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Video of our Stage 2 LPFP upgrade installation.

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