JB4? Picture inside

ReiGn_52 · 11-18-2018, 04:42 PM

Hey folks,

I recently purchased a 335i and have been slowly going through each part of the car so I know what I have and what was previously done. The previous owner mentioned a JB3 was already installed and gave me this part and mentioned it was a JB4 (upgrade or add on) that he had never installed. I attached a photo of the piece he gave me.

Can anyone give me any advice before I move forward and open up the ECU box? I wouldn't mind attempting the install but would love some guidance prior.

Thank you

Antetokounmpo · 11-18-2018, 09:39 PM

Take the jb3 out, sell the jb4, then flash MHD.

BM3Rrrr · 11-19-2018, 12:29 AM

Quote:

Originally Posted by Antetokounmpo

Take the jb3 out, sell the jb4, then flash MHD.

Mike@N54Tuning.com · 11-21-2018, 09:20 AM

Thats not a JB4 for sure.. There is no harness??

Mike

MysticRob · 11-21-2018, 10:54 AM

Google search shows that only as a JB3 part, though I can't tell if it's the entire 'kit' since it's so old. As mentioned above, maybe you can get some cash for it on ebay and use the funds to help purchase and flash MHD, which is 100% awesomeness.

11-18-2018, 04:42 PM	#1
ReiGn_52 Registered 2 Rep 4 Posts Drives: Alpine White 335i Join Date: Nov 2018 Location: SoCal iTrader: (0)	JB4? Picture inside Hey folks, I recently purchased a 335i and have been slowly going through each part of the car so I know what I have and what was previously done. The previous owner mentioned a JB3 was already installed and gave me this part and mentioned it was a JB4 (upgrade or add on) that he had never installed. I attached a photo of the piece he gave me. Can anyone give me any advice before I move forward and open up the ECU box? I wouldn't mind attempting the install but would love some guidance prior. Thank you Attached Images
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11-18-2018, 09:39 PM	#2
Antetokounmpo Brigadier General 1552 Rep 3,475 Posts Drives: E90 6MT FBO; '18 F150 Platinum Join Date: Jul 2013 Location: WI iTrader: (3) Garage List 2018 Ford F-150 Pla ... [0.00] 2008 BMW 335xi [0.00]	Take the jb3 out, sell the jb4, then flash MHD. __________________ 2008 335xi 6MT \| VRSF Catless DP \| VRSF 7" FMIC \| VRSF CP \| TIAL BOV \| DCI \| MHD 2+ BC Racing BR \| Stoptech 600 \| Firehawk Indy 500 255 Square \| Atric Altimax 225 Sq. 2018 F-150 Platinum 701A \| FX4 \| 3.5 EcoBeast
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11-21-2018, 09:20 AM	#4
Mike@N54Tuning.com Joint Chiefs of Staff 4918 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	Thats not a JB4 for sure.. There is no harness?? Mike
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11-21-2018, 10:54 AM	#5
MysticRob Captain 573 Rep 870 Posts Drives: 2009 335i E90 Join Date: Jan 2017 Location: Fremont, CA iTrader: (0) Garage List 2009 BMW 335i E90 S ... [10.00]	Google search shows that only as a JB3 part, though I can't tell if it's the entire 'kit' since it's so old. As mentioned above, maybe you can get some cash for it on ebay and use the funds to help purchase and flash MHD, which is 100% awesomeness. __________________ 2008 E61 535xi Sport Wagon / 100k Miles / Deep Sea Blue Metallic / Natural Brown Interior / MHD Stage 1 91 CA-Octane Tune. SOLD - 2009 E90 335i M-Sport Sedan / 143k Miles / Alpine White Exterior / Chestnut Brown Interior / Mishimoto FMIC / xHP Stage 2.
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