Join Date: Nov 2014
Thanked 1,854 Times in 1,272 Posts
1-4 waste of money if you’re running CTT. Hell you don’t even have to unplug anything. Their tuning simply shuts if off in the ECM.
5” for the win. It’s deeper. 4” is ok but not nearly as throaty.
I wouldn’t delete anything under the hood until you do a 2nd gen swap when you actually HAVE to remove certain stuff. Until then it’s a waste of time and money with zero gain.
'14 6.7 S465
'18 6.7 S472-5 Blade 2018 Build