These parts have approx. 7k miles on them, and I am selling them as a package for $700 +shipping (within US only). If you're able to pick them up, then obviously there's no shipping.
The Stillen headers are ceramic coated and heat-wrapped. (If you don't want the wrap you can just remove it.)
I have had no SES/CELs with these components. The Berk HFCs have an extended O2 port, which is essentially an integrated non-fouler to keep the sensors out of the direct path of the exhaust gases. Indeed, the next pics show how clean the O2 sensors were when I pulled them out.
If you're wondering what kind of sound you'll get, I have vids. But keep in mind that I also have a Stillen CBE and G3 intakes in these vids, so the sound won't be exactly the same unless you also have these.
Interior sound:
YouTube - 370Z w/ Full Intake & Exhaust Mods
Exterior sound:
YouTube - 370Z with Stillen Exhaust and Berk Hi-Flow Cats
YouTube - 370Z w/ Stillen Exhaust & Berk Tech HFCs: Launch Clip
YouTube - 370Z w/ Stillen Exhaust & Berk Tech HFCs: Drive-by video
PM me if you want them. The $700 price is firm, and no I'm not willing to sell these components separately at this time.
Also, I've had a number of people previously tell me that they wanted them, so then when other people inquired about them, I told them that they were already spoken for, only for the original person to back out. So if you want them, I will require a non-refundable $200 deposit so that I know you're sincere. I will give you up to a week to pay the remaining balance. Sorry if these conditions sound harsh, but I've been jerked around by 5 different people on these already and I've had enough.