I'm a 2 month owner of a 2006 Ram SRT-10 Quad Cab with 27Kmiles. This is my first one. It drives perfect, has no mods (not yet) and I just had the plugs and wires replaced. I thought it was a good idea because it seems to have a different idle feel. You feel it more on a cold start up and it gets better as it warms up. Even when it's warmed up and I'm stopped at a light you can feel the soft rock from the engine. Tach stays motionless and there are no codes or lights. My question to all of you... when you first got a feel for your Ram SRT-10 did you think it idled a little rougher than some of your previous vehicles? Does this V10 have a natural and normal rougher idle feel?