This website specializes in Volvo parts at competitive prices:
http://www.fcpgroton.com/volvo240exhaust.htm#converters
Call them at their toll-free number to ensure you get the right part for
your year and model. The part price is between $140 - $240 (much less than
$900), plus you will need to pay a muffler shop to install it, relatively
inexpensive (i.e., less than $100).
