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Just go back from the BMW dealer an hour ago and I let the Sales manager drive my car. He could not belive what he was driving!!! He then took me with him and we drove his 07 335i (NO ECU UPGRADES) and it was a completley different car. ABSOLUTLY NO TURBO LAG. And here is another thing...we parked the cars side by side and started both up...(they were both warm) and his had a completly different sound. His car had a great sound mine did not sound at all like his. I could here the difference between our cars. His sounded raspy and very good and mine I could hardly hear. Anyway, he got together with the SM and they are going to summon the regional service tec rep. I am thrilled that someone at the dealership noticed the difference and what a sizeable difference it was with about 5 people standing behind our cars when revving them a little. Ill keep ya posted!!
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