Just wanted to share my results from my tune(s) from Rob @ Zcargarage. First off I've had a positive experience with Zcargarage, I'm quite OCD about things but they haven't disappointed.
For the first chart, blue was completely stock, and red was with Ark Grip v2 CBE without tune.
Blue: Stock baseline
Red: W/ Ark Grip
Time: Different days
Second chart is w/ Ark CBE baseline and tuned.
Blue: Ark Baseline
Red: Ark tuned
Time: Same day
So I ended up swapping out the Ark exhaust with the Berk CBE, so the third chart is with AFE Takeda Intake and Berk CBE - baseline and tuned.
Blue: Berk CBE + Takeda CAI baseline (on stock tune)
Red: Tuned
Time: Same day
As you can see modded, my baseline was actually lower than stock.
My conclusions: Before tune felt that the Berk CBE noticeably added a lot more power than the Ark did, but later after installing the AFE did not add much if any power - really nice sound though under throttle.
Hope this helps you guys.