Quote Originally Posted by DavidTB8889
I have techtonics downpipes to a MTM Catback without the resonator on my S4 and it sounds pretty good. i would just get a custom catback and techtonics downpipes
too late...i already went with the TT catback w/ borla mufflers sounds pretty good to me...but i would be curious to know what the TT DP do for sound....

we should meet up sometime...i live in marietta and am up in kennesaw almost everyday...hit me up if you are cool to link up sometime...ive yet to meet another S4 owner in Cobb (w/ any mods that is)