Quote:
Originally Posted by SeXiPYm3
Looking at the bigger picture... BMW has been underrating their numbers on FI cars. So 440-450 could be the real numbers. And think about how many 335s are rolling around with 400hp just off of a tune. So that means that 500hp should not be hard to reach at all. And having a base of almost 400tq, the thing will be moving and will be a great car around town! All that plus some stock weight reduction, this is a win!!
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I think they may be overselling the tune if anyone is claiming 400hp with 'just' a tune. Tunes alone can add 30-50hp at the wheels putting you somewhere in the 350hp area perhaps if we actually knew what the drive train loss is. I don't think anyone is gaining 100hp on a 335 with only a tune on normal gas, at least not one that won't run the risk of blowing your engine.
Common is about 300-310whp with a 'safe' tune. Now add in DP, E85, Meth, etc which allows you to safely turn up the boost and then you start to see the big numbers and make a M3 see tail lights, at least in a straight line.