I see no reason these wouldn't fit an 18.
This is usually an early mod for most people.
https://performanceparts.ford.com/part/M-5872-M
These are very similar to Steeda's
https://www.steeda.com/Steeda-HARDCORE-S550-Mustang-Subframe-to-Body-Bushing-Kit-2015-2019_p_13220.html
SOLD - Grabber blue strut cover
new, never used, never installed. $35.00 (includes shipping)
SOLD - JLT master cylinder cover
new, never used, never installed. $35.00 (includes shipping)