[klager23]

I hate to be that guy, but has anyone looked into just how many pollutants would be released from this mod? Don't get me wrong, I'm ready to pull the trigger with my local BMW specialist shop (Nixon Automotive, Burnaby BC). I'm just curious that in the long haul... If it would be better to just get an M version and call it a day. From what I've been told, I can't do much else with my spec of the 35d (suspension wise).

More power, more noise, more speed, but same handling... doesn't balance out for me. Also, I'm not into drag racing, but the x5 is an incredible freeway handler imho. Exit ramps, HOV lanes, long steep pulls (many hills), and overtaking most traffic when I need to is effortless. I thoroughly enjoy my commute and worry, that in the back of my mind, I would know that this is just a cheap and 'dirty' fix for more torque.

So, A. does anyone have any numbers to compare exhaust pollution? And B. Are you better off with an M truck (if you can swing it, of course).

Thanks all.