These will work with 1.8 and 2.0 cars as well (if I'm not mistaken, these have the same size piping as the 2.0 model, so same performance - please correct me if I'm wrong!), if a corresponding exhaust is used (if going the traditional route); otherwise...
Comes with a whatchamacallit (stub pipe?) so you can use whatever muffler you want; any muffler shop should be able to make one for you for not very much $
Thank you.
-duc