Hi,
I recently got a 2004 RX300 and wanted a bit more sound and performance from the exhaust. I got a quote from a few places but ended up going with a Cybox exhaust system www.cybox.co.uk as they have full factory facilities not like the back street powerflow dealers. The system is still silent on idle but gives a nice V6 purr when cruising, I have also noticed the the car is much more responsive at lower revs. Pics below its full stainless with lifetime warranty. I dont work for Cybox before anyone asks lol.