just wanted to introduce my self. just picked up last week an ultrasonic Blue IS-F here in New Jersey. i previously had an Imola yellow 2007 audi rs4 . I have to tell you. love my is-f more than the audi. the look of the is-f inside an out. the rs4 was a good performer but its interior looked like it was stuck in 1987. needs a big makeover. I love this -Is-f .waiting to be availalable is an aftermarket exhaust. Anyone going to change the exhuast on their cars. just wondering your thoughts on this.