I blew sound the first day I had the car there on the first warm up lap in the morning! You'd be OK in that parade they let the general public do once a year but the GT4 stock will not pass under any reasonable acceleration regardless of gear (well maybe 6th would be OK).

John at fabspeed had them make me some custom turn downs that are extended, turn up and to the left of the car. I know their setup is expensive but I like the larger CF street tips they offer anyway and the way the tips attach (can be changed at the track). If those open turn ups aren't enough I'll have some Vortex cones welded into them. I'm also going to get a GPS based PSE controller from doboarder once he get's his car and has those dialed in. I thought about custom Laguna pipes but in the end Tom was too busy and I worried about a custom unit messing up the stock tips or worse falling off on track!