When I called, he asked if I wanted the GT or GT-S, so I'm inclined to say that they at the very least have a set of the GT-S tips.
By the way, I installed my RPi GT exhaust last night in my garage. Holy crap does it sound nice. Sounds similar to my TT 3000GT (6G72 3.0L V6) with a 3" GReddy exhaust. Deep and rumbly, nice deep idle note, not annoying when cruising, and loud at WOT.
Build quality of the exhaust was unlike anything I'd seen before. It came flawless from RPi.
2007 Sky Redline @ 21 psi
GMPP stage II | Dejon intake | TSW Nurburgring 19x9.5 | Michelin Pilot Super Sport 275/35R19
1997 Subaru Legacy Outback JDM EJ205 & TD04 15T swap @ 13 psi
2003 Dodge Viper SRT-10 Super Sport 275/35R18 | 345/30R19