You can usually get the SLP catted X for around 400 bucks, the install you can do yourself but its a royal pain in the *** to get at the passenger side bolts esp if you dont have a lift and/or patience (which in my case i lack) so i paid 75 bucks to have midas muffler do it. heres a link to mustangtuning, if you get it from them type in "Mustangboards" and you get 6% off, its good for like 20 bucks, good luck man http://www.mustangtuning.com/slpxc99.html

 

What would o/r x pipes sound like with a magna flow cat back?

 

pm 2000gt4.6 he has LTs, o/r x and magnaflow catback (NOT magnapacks). It sounds fuking mean as hell! I LOVE the way his car sounds, its like hot sex.