I have had 225/50R16 tires on my 98 E0 SVT since I wore the original tires out at 40,000 miles. I have had Continentals, BFG KDWS, and now Dayton Daytona ZRs on it. There has never been a clearance issue. The fit is close, but adequate.
IIRC the issue with revised fender liners didn't happen until 99, but it seemed to be from the mold not holding dimension. Not very many ever had the interference problem that the TSB was about.
Since you are dealing with a size that is not recognized as a factory fit, it would be wise to talk to the tire shop and see if they will mount them up and check for fit and remove them and sell you a different size if necessary. Most tire shops would be willing to help you with that.
The only way to be certain that they will fit YOUR car is to try them. With so many people reporting that they have done it, the odds are greatly in your favor.
