So the part number is 74870-CG000. It's called the "tunnel stay assembly". SRP is ~$300, but a couple of online places have it for $205. i see used ones on ebay going for $135 to $200 including shipping. However some of them are supposed to be for Nissan 350z or Infiniti G35's but they all look to be the same. the 350Z's part number is slightly different - 74870-CD200, but cosmetically it appears to be the same. Anyone know if they are indeed the same part, but just different part numbers?
Also it seems easy for a DIY. Has anyone replaced theirs? looking for any pointers