Exhaust.....
#3
Yes, it will be too loud, they are loud with cats!! They also sound like crap IMO. I guess it depends what you want, if you're looking for ear-splitting noise, get 'em, there are many other good sounding exhausts on the market.
#5
Why not run cats all the time? it's a bit quieter but there's hardly any power loss at all. Some good exhaust companies are Magnaflow, Bassani, Borla, Pypes, IMCO, etc.... there are many, all will sound good w/the ProChamber.
#7
#8
Keith, put on the mufflers i gave you. and just see if you like it. remember, my car was a 200hp slug so they will sounds more agressive on yours with the amount of air your capalble of moving. and your headers and midpipe will complement it better to
#9
I'm going Magnaflow on mine. SLP sounds to "barky" to me too (agreeing with Ponyryd for once LOL!), not my cup of tea.
Everyone's taste is different in this department. I loved the sound of my 40-series flows on the purple car, but I've heard the Magnaflows since then and I really like them too. They also don't have the insane 2,000RPM drone that the flowmasters have..... Which can be a nuisance at times. MAC also sounds awesome, U-LOSE has it on his car (or at least he did, not 100% sure that's still what's on there) and it sounds incredible.
Maybe find some sound clips and take a listen, see which you like best? After all, you are going to be the one living with it