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BMW 5-Series (G30) Forum Engine, Exhaust, Drivetrain, Tuning Modifications Anyone Install a Speed-Buster Piggyback Chip yet? Wiring Harness Question...

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      01-02-2019, 02:31 PM   #1
spectrumphoto
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Question Anyone Install a Speed-Buster Piggyback Chip yet? Wiring Harness Question...

OK,

So I received a Speed-Buster Piggyback Chip for my 2019 M550i from BimmerWorld. I tried to install it over the weekend and something is not right. The instructions call for the wiring harness to be tapped into the Boost Sensors 1 and 2 as well as the Cam Sensor and of course a Power Lead. I got all that tied in but the wiring harness also has Manifold Air Sensor connections 1 and 2. There is nothing about tying into the MAF sensors or their locations in the Speed-Buster instructions and at the moment people at BimmerWorld seem miffed as well. (They thought it was just 3 connections and Power as well until they pulled out a wiring harness in stock there and seemed equally surprised about the 2 additional connection points not listed)

Anyone here have any insight? Anyone else install a Speed-Buster yet?
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      01-03-2019, 03:25 PM   #2
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OK...
So first update.
It has been confirmed that Speed-Buster has gone to a 5 sensor connection by adding MAF Sensor connections (2x) Looks like the best way to get to these sensors is from under the car. For me that means taking it into a shop to get it done and finish up this installation.
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      01-04-2019, 07:04 PM   #3
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Hows the power increase and delivery?
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