W Brace
 

Despite reading about others with similar issues, I made the mistake of buying an ARK Performance exhaust for my Nismo. Sound is spot on, fit was horrendous. Two shops and a number of hours later, I ended up telling the shop to just make it work (Nismo was the DD at the time)! The only way to accomplish this was to smash down the W Brace. It hasn't caused any issues, but I know it's down there, and I want to make it right.

I'm planning on having HFCs put on, and during the process, I'd like to fix the unsightly mess.

Let me know if you have a used but good condition W Brace and are willing to ship. I live in Illinois.

Thank you!

I think this is what you are looking for. I bought a set of red Akebonos from this seller. Actually may be from the same car.

2016 16 NISSAN 370Z NISMO OEM REAR SUBFRAME CROSSMEMBER ASSEMBLY VQ37 Z34 #7089 | eBay

That's over $500 off of retail.