currently have 225/50zR16 on the car. I want to replace with 225/45R17 on the front and 245/40R17 on the rear. Are there any clearance or other problems with this change ?
I have no idea - give Tire Rack a call, they should have an idea - or Apex Wheels - https://www.apexraceparts.com/
Well, slapped 'em on. Look great, nice stance, handle great, no problem. Speedometer is more accurate ( still not precise )
Now, anybody know where I can locate door strikers ( BMW part #51218399245 ) No parts stores have them and BMW has been no help
I wouldn't expect part stores to have them. Why do you say BMW is no help? https://www.getbmwparts.com/oem-parts/bmw-striker-51218399245 https://parts.bmwofsouthatlanta.com/oem-parts/bmw-striker-51218399245
You can always do a google search of BMW & the part # & see what comes up - https://www.google.com/search?client=firefox-b-1-d&q=BMW 51-21-8-399-245 This says it has one in stock - https://www.bmwpartswarehouse.com/BMW-Z3-Right-Striker-p/51-21-8-399-245-364767.htm Or, hit up the BMW part-out places, I think one or two advertise in the Roundel (or used to), and see if they have any off a scrapped Z3 for you.