Hi Guys, Soon it will be time for me to install the fabled Tubi Test Pipes in the 355. I will also be inspecting the headers just to be safe (when I had the car in to the dealer over the winter they did look at them and say my cats and headers were in good shape). Before I do this, I do have a few questions: 1) I can't seem to find any guide on here to walk through the install. Does anyone have a link to one? 2) Are there any negatives to installing these test pipes? My concerns center around this changing the back pressure of the system and also it shooting flames causing damage to the paint. Will it damage the paint? The car is all original paint and I'd like to keep it that way. 3) Do I need to buy anything besides the test pipes (pictured), such as new exhaust gaskets? When I bought the car I had these thrown in as part of a package deal, but this is all I got. Image Unavailable, Please Login Image Unavailable, Please Login Thanks guys!