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      09-21-2007, 09:16 AM   #16
BoostedBMW
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Quote:
Originally Posted by retrodrive View Post
From what I understand, downpipes add some boost to stock 335. Thus, the extra power. A car with a piggyback does not get much advantage except faster spoolup times.
Hmmm.... they add boost? I could see faster spool up, but your wastegates are going to work the same whether or not you have cats on your car. Can someone confirm this? I doubt that we would see boost creep on a stock car with downpipes.
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