Is the Fuel Rail Pressure the same as the psi reading you are seeing on your injectors. For kicks, I was watching my FRP on my iDash and at idle during startup it was hovering around 3600psi.
The front of it has a small clip that if you push back and up it will come out. The back of it has a long retainer style clip. I will take a picture tonight and show you.
Door sticker would only be for factory tires. You may want to do a chalk test with that psi to make sure you are getting even tire wear. May be fine. You get a low air pressure warning light?
Why would there be a reduction in the turning radius? Maybe if you installed different offset wheels or bigger tires and they contacted something. The level just changes the normal resting position for the front coils.
I used the nut instead of the clip. I have had issues with these clips rusting and fusing to the bolt in the past. I used some electrical tape to hold the nut to the wrench so I did not lose it in the engine bay.
The one thing I can say about the black lug nuts (in general) is the finish will scratch when the bozo at the dealership rotates your tires with a pneumatic air gun...
Installed my HN Customs gauge pod mount this afternoon. Fit and finish of this handmade piece is incredible. 10/10 and worth the wait.
Here are some pics of the install. Had to drill a hole in the dash to route the wires to the OBD port. Took my time and it came out great.