2 questions
 

Ok so im finally getting my new parts for the bird. My question is that does any1 here have this setup... LM, QTP LT's, and cats??? If so what cats are free flowing and have a nice deep sound. And my other question is, what do u think ill run in Etown w/ my mods. LM,QTP,LS6 intake,80mm TB, MAF,lid maybe a tune, and some drag radials??? Im hoping to break into the low to mid 12's. Id be thrilled with a 12.4 but dont know if ill get there. Just curious, ill be tracking it next month and post some times.

Mid 12's should be easy with your plans. A tune will be critical in unleashing your car's potential.

- Justin

I have QTP's,Loudmouth Non Modular Version And a Mufflex stainless Y-pipe with Cat's , Full HP tune Deleted air pump, rear O2's in my 2002 Z28
I havent run it at the track yet so i don't have any times
But i have an A4 with 3:73 gear's and the highway cruising is brutal
my girl friend said my exhaust was rattling the dashboard in her car while she was following me up the turnpike LOL .. 1000 - 1500 RPM's Sounds like ****
It does sound brutal at WOT but i am still 50-50 with it because of all the highway driving i do it makes me wish i had a electric cut-out , I'm not going to get rid of the set up just yet because i want to hear what it sounds like when i do my Cam,heads and torque converter Memorial day week then depending if it is to much for me or not i might go with a Magnaflow and QTP cut out to calm it down a little bit
But if you are looking for Loud it is definitely the set-up for it

i thought that you had to buy the QTP y pipe and all the other ones dont work. I know for pacesetter and hooker you can buy ones for TSP??

muffex custom makes ypipes.

Its required with the QTP LT's