Is there a reason to switch my tune?
MBWorld Fanatic!
Joined: Jul 2009
Posts: 1,196
Likes: 1
From: SoCal
2013 E63 AMG
Well here is what I ultimately decided...since ACG has been great to me and my car, I am going to give them first crack. Also, in order to get the stock file back in time from PC (I have to send them my ECU and have it sent back since they wont give us the file) it would be cutting it close to dyno ACG vs. Stock vs. Powerchip in order for me to be up in LA by Saturday. Plus, I have to work a lot this weekend and my photoshoot with Jeff is on sunday. So, Im going to try out ACG's tune and look at the numbers it puts down and then decide whether I want to go up to LA and test OE out.
