Honestly I came upon this thread hoping for someone to mention the difference in power. The berk exhaust + berk hfc combo is heavier than FI exhaust and FI hfc, but doesn't the berk combo make more power? Or do you lose some in the mid range and gain top end? And from what I remember doesn't the FI combo give you more power over the entire RPM band but won't have as much top end as the berk combo?
That's the comparison I'm really interested in and since the OP is missing I might as well put my question in here to cut down on useless threads. And yes, I've done my research but I cannot find consistent data.
