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      08-03-2012, 07:15 PM   #11
hellario
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Drives: 335i E92
Join Date: Oct 2011
Location: SoCal

Posts: 6
iTrader: (0)

Quote:
Originally Posted by Gfabry View Post
I've a JB4, BMS DCI and running the new map 5 (e85 map) and a mix of E85. The car runs great, close to 390whp just with that. The JB4 takes 40min to install the first time, 20min the second time.
You have the choice of 8 maps, all different and great. I'm also amazed by Terry's support, every time you have a problem, email him and he will get back to you within 2hrs. Never seem a customer support like that, just amazing.
For the exhaust sound, I unplugged the wire going to the left exhaust flap so it's open all the time, it will give you a much better sound and cost $0.
Customer service does sound good, but what kinds of problems do you get with JB4?
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