Aidan,

The original post was asking about the JBD box, i think everyone understands your opinion...great...can we get this thread back on track as i'm interested in a JBD and would like feedback from those that have it, or similiar competitors...i'm not going to spend $1k + on a custom tune, my car is a lease and i'm not going to invest in supporting mods and everything else...i want a basic performance increase that's relatively safe at an inexpensive price....the JBD seems to fit the bill....yes, a flash to the ECM can control more variables...my truck has a "smarty" program running in it...it overwrites the stock maps with 10's of custom maps...it even let's me adjust rpm limit, top speed limit, rail pressure, tq mgmt de-rate, timing,....it's awesome...but i also have $10k of other supporting mods to keep it from blowing up....i'm not looking for somehting similiar for my x5...i'm looking for simple, effective and reasonably priced....and i dont care if it's tinfoil in a zip lock bag if it meets my needs....JBD / Terry is on this site, has been around for a while and appears to offer good customer service...is the JBD the end all, i doubt it for $279, but it seems like it has a following and is a good product for what i'm looking for....

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2011 X35d - Platinum Grey/Black/Bamboo
Premium, Convenience, Technology, Rear Climate, ipod/sat - 1st Time BMW Owner

2006 Dodge 2500 Diesel (7500lbs and 13.4 Sec Qtr Mile)
2010 KTM 530 & 300