Sport exhaust rear silencer suspension Escort Fun 1.8 16V GAL 85KW

Hello everyone, my new companion (Ford Escort Fun, GAL, 1.8 16V, engine code: RKC, 115Ps, built in 1997) and I are new here. I only recently got the car and have no experience with it at all. Hope it can tell me here which model it is (MK7????? meaning???) Which sport exhaust you can take (have already looked at Google and various manufacturers and found nothing suitable). Either the were to teu he or offer nothing for him, maybe I look for the wrong ones??! Hmm… . Then I’m not sure if I should just take a rear silencer or a complete system from Kat… Am open for advice, however, I don’t want to spend any money… would say up to a maximum of 300Euro. Is a combination with a sports air filter possible? In the end a sporty but not too loud sound should come out and be entered without problems at the Tüv! Now still e in question on the chassis how deep can I do it without changing anything on the body (his tyres: 195/50 R15) Only springs or complete chassis? Would you like to thank all those who would like to help us!!! MfG Boa