12. One last step was to properly hang the new stainless steel intercooled tip. The slip-fit connection allows for the tip to be placed at just about any level. However, the tip had to be run out just slightly past the back of the bumper or roll pan. Failure to do so would have promoted prolonged exposure to carbon monoxide gases that could have wafted into the interior cab. Also, by properly routing the exhaust tip out the rear, spent exhaust gases and fumes will not dirty up the backside of the SUV.