To clarify posted by Russell@Z1 on February 18, 2010 at 11:40 AM
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Question: What is the advantage of the GT555R (550BB) over the GT535R (530BB) when the GT535R sells for $2195 and the GT555R sells for just $2245? That's only $50 more.
Is the smaller turbo much more responsive than the larger? I'm not sure why anyone would want to stay with the smaller.