Gvan: I'm interested in the Fabspeed exhaust system. I've looked it up on the internet and found "Muffler Bypass Pipes" for the `04-`05 G at Vividracing for $1595. Is that the unit you have on your `04? Does it completely bypass the muffler and cat system to result in what is essentially straight pipes? Did you do the installation yourself? It says it saves 55 lbs. in weight, so I'm assuming you remove the OEM exhaust system? Did you have any issues with warning lights coming on after the installation? Is there any difference in performance that you can detect? And finally, I watched your Youtube video, but it's difficult to get a sense of the tone and decibel level compared to the OEM system. Is it significantly louder than the OEM system, `cause that's what I'm looking for! Thanks.