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Which is faster Dinan tune or JB Tune?
I realize the warranty advantage that you get by going with the Dinan tune but how do they perform when lined up next to each other. Let's say F10 550i with similar tunes "Stage 1" or "Stage 2" for example. Who wins?
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2012 F10 550i BMW ///M Sport - Alpine White with Black Dakota Leather - BBS CH-R 20" Wheels in Satin Black with Stainless Lip wrapped in Michelin Pilot Super Sports - ACS Lowering Springs - BMW Performance Carbon Fiber Trunk Spoiler - To Be Continued
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