Originally Posted by bmw13
I have been thinking of adding just the Akra DP's! I too have the N55 mid pipe installed. How do you think it would sound with stock rear section, N55 Midpipe and just the DP from Akra? Also, I am on stock ECU and will not be tuning. Am I looking to hurt performance or can freeing up more flow only better the car?
If you are doing the DP's you might as well get the tune as the tune. The DP's are already a non motorplan riendly service. The tune will yiled some good results coupled with the DP's.
Given that the N55 mids are already catless, you should feel some midrange improvment?