Originally Posted by Pig Farmer
Don't expect any real power gains with the BMW PE, but the car will definitely sound more powerful. The tone is deeper, with a bit more volume, but not obnoxious. For power gains you need to look at downpipes, but that's not in the "keep it stock" category.
Thanks for the reply, I finally found some numbers and your right, kinda what I expected,,3-5 hp gain, nothing listed on trq. Have you heard those exaust? I haven't yet, not much info on the web either. Id love to put downpipes but my dealership isn't too friendly with mods. Im pretty happy with the power as it is, the BMW Perf Pack makes a huge diff from my previous 135 w/o it.