JB4 programmer – map 8 – BMW 135i

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Watch this review of the JB4 programmer using map 8. My BMW 135 gets amazing miles per gallon in this video. Subscribe to my channel! I will upload more reviews of the different maps of this programmer!!

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By | 2016-09-25T11:04:40+00:00 September 25th, 2016|Categories: BMW 8 Series|0 Comments

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