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Old 04-16-2019, 07:12 AM   #9
Stroked & Blown
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Join Date: Jul 2005
Location: MA
Posts: 770
987 airboxes show improvements on S motors. I don't recall feedback from anyone who has tried it with a 2.5.
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98 Arena Red 986

2010 e61 535 "TTWAGON"
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