i have the APEXi N1 exhaust.. not the duals... i love the way it sounds with my full open exhaust, nice to hear the backfire and flames shoot out the rear. I gained good hp off of it also, big difference once the 2nd turbo kicked in. I like angled exhausts and i'm a fan of APEXi products.. so i stick with what works... i don't like those ugly exhausts from M2, pettit, and pfs. They just look funny IMO.

 

I hate to be opportunistic but...
I have a PFS catback in great shape(4 years old but less than 3000 miles) that I am selling.
E-mail me if interested at ehkim@optonline.net

 

Blitz... is the way to go. Also add in a Borla XR1 into the midpipe. Nice purr at Idle then a Monster at WOT.
jc.