RCF GT3 footage with pure 2UR sound without any insulation. In case someone catches, the rev limiter is lowered to about 6600 - 6700 rpm due to air restrictors limiting power capped out at 500 HP for this class.
He was driving in SPORT mode where AVS is in soft setting. He never went into SPORT+ mode, which has everything in the most aggressive settings. Also, what's up with the owner putting H&R springs? RCF has no available H&R springs option. They list only IS350 on their site. Looks like the owner screwed up the suspension as only IS350 F-Sport has the option of H&R springs available so probably the owner bought used some IS350 lowering springs and put them on an RCF when RCF is supposed to have 40% higher OEM spring rates.