Is the car lowered?
When is the last time you had an alignment?
How many miles on the car?
Changing your setup might have revealed some alignment issues you didn't know you had, or maybe something in your steering components is worn or damaged, or maybe one of your tires isn't properly balanced or one of the new front wheels is bent.
Could be many things. If those front tires were really stretched on the 10" wide wheel then id say sure thats causing it, but its only 10mm less than OEM width.
I'd start with a process of elimination.
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| 2015 Nismo headlights| 275/305 | Z1 spacers | Eibach Pro-kit |k&n typhoons | AAM S-Line catback + FI test pipes | Stillen splitter |
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