I love my IS300 as a DD.I have thought about mods but the price to result ratio is not what I like.$6000.00 turbo kit for 345hp,$9000.00 Getrag 6 spd conversion.I love mine with just a set of springs and it will run forever.HID,heated seats,power everything,nice stereo and leather with good looks and reliability.What more could you wan?We have a couple on our lot that are in that price range I'm sure and might be Lexus Certified to 100k..