Thread: FS Cobb
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      02-21-2012, 04:59 PM   #21
Drives: JB E92 335i
Join Date: Feb 2008
Location: 1721 E. Lambert Rd #C, La Habra, CA 90631

Posts: 13,594
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Originally Posted by xtac View Post
n00b q, but what's the diff between cobb, jb4, proceed?
The Jb4 and proceed are piggy back systems that require you to add an external device into your ECU box under the hood. The COBB AP is a flash tuner and will simply rewrite the ECU with new settings. is offline   United_States
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