IM picking up a Racing Beat Collector / Header from a friend for a reasonable price. I know this will make the car louder and make some power.
My current setup is okay. Which is
Stock manifold, mid-pipe (Precat delete), main cat, striaght piping to a presilencer then to a single exit 3.0 inch muffler ( both invidia). Which is loud but not too loud. I havent got any fix-it tickets yet, but I would like to keep it that way. I've also had police follow me for a bit but I keep the RPMs down. So with this collector/ header.
I planned on maybe going this route
RB collector, # (Magnaflow or Borla presilencer), Main cat,# (Another Borla or Mangaflow presilencer) then piping to a Invidia presilencer to a invidia muffler with a 3 inch tip. I don't want to be droning on the freeway or make too much excessive noise.
I still want to be able to drive this car daily on highways too.
Any suggestions fellow rotorheads ? advice on presilencers ?

 

I would suggest rethinking your 'catback' setup. An RB header/presilencer out to a 2.5" muffler is loud (ive gotten a ticket for it once). I would suggest going back to twin mufflers (that have a tip that points downward) to bring the level of noise down, especially if you are concerned with noise, and it also helps to keep the car 'stock' appearing for the cali cops.