i just came into some enkei wheels. "92" style, 5x121. do i need a spacer if im on stock 16" iroc's.

 

not enough info. How wide are they between the lips, and what's the backspacing on them?

 

0 offset

 

8.5s may fit with zero offset, up front, and will fit in back.

 

Any wider, you'll be looking at spacers.

 

#1.....Still not enough info to say anything.

#2.....5x121.....Huh? 5 lugs x 121 mm?

#3....Width means NOTHING in regard to spacers. My 11"/no spacers, rear wheels are proof of that.

#4....Your stock 16" wheels mean nothing, in regards to new wheels fitting.

#5....9", 0 offset will fit, front & rear, no spacers. My 9"/no spacers, front, are proof of that.