Signal light conversion from S13 to S14

[240SX21]

hey fellas.  well im looking to buy the veilside CIII bumper for my 89 S13, and the veilside guys said it would fit fine, if i upgrade my turn signals to 93-94 240SX turn signals.  so im wondering, whats the difference between the two?  think it will require any major mods?  i know i can get the turn signals cheap, im just wondering if any major mods will be neccessary, since i havent seen the turn signals on an S14 lately.  any help is appreciated, thanks.

[AKADriver]

They mean '91-'94.  That's an S13, just a later one.

There's no "conversion".  When you add the bumper, the new lights should pop right in.