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Old 04-30-2013, 04:11 PM   #13
Maxwell Power
Former Vendor
Member#: 190729
Join Date: Oct 2008
Chapter/Region: NWIC
Location: Marysville, WA

I picked up 40whp and spooled 250rpm faster when running 21psi on a GT35R from the factory header with Grimmspeed Crosspipe to this header. Most of my customers see similar results. That would tell me, no, it isn't hurting spool and yes, it is improving flow.
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