Well this is somewhat putting the cart before the horse, but I received my X4 yesterday and sent my information in to the tuning company at 1715, later that evening I received my instructions and tunes via email. I just loaded the performance dpf on tune in the truck tonight, everything went smooth and the instructions from the custom tune writer were very detailed and dummy proof. So I will say that so far their customer service is on point.
As far as tunes go, I will be running DPF on for a few weeks until I get my flopro exhaust system and delete it. I plan to run the 4" exhaust with a 6" tip. Once I get the exhaust installed I will most likely run egr block off plates for a while just to ensure that everything works then I will do a full egr delete.
As far as truck use goes, it's a daily driver, 25 mile commute each way to work, 90% of which is hilly highway at 70-75 mph. My current hand calculated MPG is averaging 13.2-13.7. I have kept track of it for every tank of fuel purchased. The truck also has a 4" lift with 35x12.50x20's so I'm not looking for 20+mpg. I'm hoping to even see 17 but I just wanted to give a little bit of info so yall can compare the mpg reports. I will post back soon with reviews of the tunes, tuner, and custom tunes.
The only thing that I am uncertain about is whether or not I will go with a muffler on the exhaust. I've read near about all the posts on here discussing the topic and pros or cons, I just haven't decided yet. I'm leaning towards no muffler initially and if it's too loud then I'm sure I'll add one on, but we shall see.
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