Suggestions please! thanks.
 

I have catback magnaflow and i took off resonators ... sounds nice if you want it stockier with a slight sound ... im looking for more sound ... what can i do ? my shop i go to sells magnaflow/excelerator/flowmaster ... should i get after market cats .. if so what kind? and what about piping ... the guy just used my stock piping .. what size should i use? .. all suggestions welcome .. thanks