I def want the best hp I can get. And I'm sure the sound will be better then our stock. I was always told by Lexus guys that our cars were made quiet because we are luxury vehicles. But I am open to all options.
ddcruise.... You should definitely look into getting a set of these headers. It's at a GREAT price and they are the biggest bolt on gain you can do on your ISF. Especially considering that you can buy these and get them installed for around the same price you can pick up a $1700 exhaust plus shipping... And you will get close to double the gains over an exhaust. I'm just saying this is definitely the way to go if you are wanting power. I'm not sure about the sound but I'd imagine it could only improve. The Group Buy ends soon. You need to get in on this if you are wanting to do headers. My deposit is placed! =-) Do It!!!! ;-)