Thread: Did JB4 tune
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      01-06-2013, 10:46 AM   #3
Drives: 2014 BMW 435i Coupe Msport 6MT
Join Date: Sep 2009
Location: Fort Lauderdale, Florida

Posts: 1,181
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I had the same result, even upgraded to a downpipe and went to map 2, it felt a little quicker, maybe 20hp worth, but nowhere near the 60-80 I was hoping for. Sold the car and have a 335is on order, I guess they are right about the tunability of an n54 vs an N55. However, it is a good product and a great price, just didn't give me the power I was expecting.
Matts435coupe is offline   United_States
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