ehhhh the VDC voiding the warranty is no worse than Mitsu and Subaru voiding warranties on EVO and STIs for running in SCCA and at track events.

Its a supercar so the last thing they want to do is start warrantying high dollar parts for people acting a fool. The transmission is extremely sophisticated and i can see them not warrantying people doing 6000rpms launches.

as far as cost for the exhaust, its OEM, its not going to void a warranty. Relatively speaking its as stupid as a $2000 mugen valve cover back in the day. Its as stupid as paying $35,000 for the MUGEN civic that had a wing, wheels and springs.

to each his own