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Posts: 6,203
Join Date: Oct 2013
Car: e90 335i
Default 10-11-2019, 01:40 PM

Originally Posted by ninefourteener
Terry..... gotta be honest. I just read through every post on this forum..... and every single one of them are people having problems using a JB4 on this platform.... and even unstances of you saying that tuning this platform is complicated.

That concerns me.... a lot.

I never had any problems with my JB4s on my last 2 BMWs..... this has me deeply concerned though.

There's no "success" stories anywhere.

Particularly for only "maybe" 30-40 hp.
Haven't seen any issues with the G series.

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