after having gone thru a few different mufflers makes on different cars myself plus my mates' cars, i'd defn only choose jap names like apexi, hks, trust, fujitsubo, tanabe etc... they've been proven to flow very well and yet keep the noise down... where front end pipes are concerned, the engineering involved results in well designed and constructed bends... if ur local exhaust shop can make up good front end piping for a good price, then i'd recommend that plus a jap muffler... brands like junbl and chitose and whatever other non jap made ones that have jap sounding names are crap, u might as well have no muffler at all...