Mods and exaust

Sup guys im new here juss wanted to say wasup...I am savin up now for a 1998 civic SI. Is there alot of mods i can put on this?? Also, i dont like the exausts that sounds like farts (sry if ya got em) so what is tha best sounding one that isnt soundin like that? i want it louder n to sound more powerful instead....
hit me back