I'm truly sorry. Some questions just seem pointless to me at times, like this one! I take it back.
Originally Posted by e90m3japan
I'm sorry for askin mr.know it all and I'm not ***!
I'm not here to start this BS. So please be more civilized....
You sound so immature.
Well, then I would like to ask you why do change your rims, tires, suspension, exhaust etc. if bmw made it for the car?!
Sorry for being defensive but you came so aggrevatingly.
I just wanted an answer since I have seen many people in this forum have done it and tuners here offers it and endorse it. So I thought it wasn't a bad thing, but this tuner say it's really bad like its the end of the world.
Personally I would say keep it, its loud for a minute or two and then gone and it helps warm the cats which wouldn't hurt to have. Maybe there is more to its use than we truly know. I think its nice to have, sounds like you are waking a giant beast! If your tuner recommends keeping it then take his advice, he is the pro and we are the ones paying for his knowledge. I hope this was a better approach.