Use the search function. There are multiple threads on this. Looks in the MK3 section and you will find everything you need.
Coils, Skid plate, Billet grille, Steeda CAI and STS, FSwerks Stealth Exhaust, ST spoiler, Zetec S body kit, Mid Wing, Bojix Lip, Steeda prototype engine cover
Sonic's MK3 Crew #9 Chaos!