View Single Post
      02-14-2013, 08:23 PM   #7
E90_boostjunky
Lieutenant Colonel
E90_boostjunky's Avatar
93
Rep
1,644
Posts

Drives: BMW 335I E90 SGM
Join Date: Dec 2011
Location: USA, IL

iTrader: (1)

Quote:
Originally Posted by ericfox11 View Post
Does JB4 add more performance than the COBB tuner, or are they about the same?

I have JB4 (never installed) but I'm about to buy the extended warranty for my car and I've heard the COBB is much easier to remove and is undetectable once you remove it, where the JB4 takes a while to remove and the dealer can still tell.

Can anyone clarify this? Not trying to hijack but I figured since you just bought JB4 maybe you've done some good research on this.
JB4 is best bang for the buck, ive also heard its pretty easy to install and uninstall, never heard of it being noticeable still after its removed. Im not sure, dont have one yet. but read a lot about it.
Appreciate 0