I'm really new to the audi world so plz ppl bare with me an I'm not that smart an I'm trying to get my car smogged but it will not pass I have a 1998 audi a4 Quattro 1.8t an honestly I can't find anything on a 98 I'm always seeing stuff for 2000 an up I'm surexcited there someone here that has or knows anything about my 98 the guy I got it from I believe they were trying to make it a race car or something idk it had no catt on it I put one on an car seemed faster so I don't see the reason for that except making car louder lol.... if there is anyone out there that can help I would really appreciate it alot idk if u can receive private messages on here or not if not plz email me @ craigbeckjr@gmail.com I have a few questions I prefer to talk to one person at a time for this jus so I can really understand its all really confusing to me I understand some but then something else gets thrown in an i get all messed up so plz HELP ME IF U CAN THANKS IN ADVANCE