Coming from a Gen1 I Needed to get some sound from the truck so I went with a Velocity AP Valvetronic exhaust. Added a set of CP-E High flow downpipes and a CP-E intercooler. I opted out of the remote valve dongle and have the exhaust Valve switch directly wired to one of my stock toggle switches. Odds were pretty good I would lose the remote. The exhaust is DEFINITELY much much louder open and noticeably louder than stock with it closed. I have never heard it without downpipes though. It has a 93 performance tune from 5Star along with a turbosmart blowoff valve. It actually seems quicker with the valve closed I'm assuming the motor likes back pressure. The exhaust has amazing craftsmanship, Velocity AP deals primarily with McClaren and exotics alike, but built this exhaust for one of their regular customers who also wanted some sound from the truck. I can also tell you the videos online that let you hear the exhaust do it zero justice. I only have two cons for the exhaust. 1 price, for some people the cost is probably not justifiable. and 2 when the valve is shut if you put your hand over the open dump pipe you can feel some exhaust getting buy, not the end of the world but its something to hit a button on some people.