Maybe others will provide more opinions. But headers was not for me. It was a lot louder in all modes and very raspy sounding to me. After 100 miles I took them off and went back to stock. I had factory resonator with and without headers.
Here is mine I made up. Made in Excel. its just 8.5 x 11. laminated and in a clear plastic holder. I just put it under my wiper to display some info. Will have to update this spring.
I seen someone polling interest and working with 5spurs on a Ford GT style switch. I have not seen any progress updates or confirmation this will happen.
I would think this would be an issue across the S550 Line. Makes me think there is an issue with the seatbelt mount causing it to dig into the seat. Hopefully the dealer will take care of this and identify the cause.
Not sure on seat belt color change, i think i seen someone that had done it.
Not sure on the door pulls
But search Beith for the steering wheel. and a lot of people say the seat belt guides really help.
Beith Performance Wheel...