Originally Posted by Dustin@Z1

Jon,
Sorry for the lack of response. I was some how missing this thread when I was skimming the site.

We have found the following regarding these braces:

1. The front brace under the front fascia will not work when installed in conjunction with a Stillen Gen III Intake and a 34 Row Oil Cooler. We ended up removing the front brace as a result.
2. The Rear Interior brace WILL NOT work on convertible (roadster) 370Z's. These cars can only install the Front and Lower Rear Brace.
3. The lower rear brace sits slightly lower than the rest of the chassis. If your Z is lowered, it will scrap occasionally. Our shop car has many scratches and dings from driving around local back roads, etc.
4. Some exhuast systems can come into contact with the lower rear brace under certain conditions. Between the engine's natural movemen and flex of the suspension, the cat back section that passes above the brace will vibrate. We ended up spacing the bar slightly to combat this.

We have absolutely no complaints whatsoever about the braces on our Z. Being designed by NISMO Japan, we have 100% confidence in their research and testing of this particular piece. Our only limiting factor of our Z when being tracked is the tires!