It ones come from overseas BUT TO TSP's SPECS! If you don't know exactly what's going on or FIRST HAND experience then PLEASE don't assume and think it might be a bad thing!
It's NOT I've installed a set and was a breeze like any other. I'm also waiting on a set to put in my cousins L99. Also if you keep on searching like bringing this old thread up YOU'D SEE there are no complaints on them. Thanks again for trolling Camaro5.com
01 Ws6, m6, ASC#618 of 1583,40k Miles,shortblock built by AES the rest built by me,Ls3 416,FAST 102, NW102,LPE Ls3 heads,LsR 243/259 .624 114+3 ,C5r T/c,all ARP'd,12-1 comp,morel L/b lifters,melling O/P, kooks 2" headers,FTP 104mm lid,JAAM RamAir Kit,PB 10% UDP,UMI K-member,UMI T/A relocator,UMI SFC's, UMI upper and lower c/a,SLP T/A,UMI LCA's,UMI adj. PHB,Racetronix f/p,sjm abs delete,katech tensioner, dhm dual cutouts,magnaflow CB,Koni adj shocks,BMR springs,Moser 9in w/35 spline axles,4.11's and spooled, viperized T56,tuned @Straightline's mustang dyno 545hp/524tq