2015 Nismo cbe suggestions or opinions
 

Just recently purchased a brand new 2015 Nismo tech and plan on purchasing a cbe for it. Looking for gains and the right sound.

I'm between the AAM S line axle back + S line midpipe or the Akrapovic Evolution System w/carbon tips

I know both systems are not priced equally, but I have an opportunity to purchase the Akrapovic system at almost 1/2 price!

And insight would be greatly appreciated.