can a 1998 318i w/o sport suspension use a sport suspension front strut assembly
When dealing with suspension and brake components it is always advised that you replace both sides. To answer your question, yes you can rplace with sport strut assembly but you will need to do both sides, and if possible get the uprated springs aswell ( M-Tech).
Search BMW 3 Series Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
BMW 3 Series Experts