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BK911 BK911 is offline
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Join Date: Mar 2001
Location: Rocky Top, TN
Posts: 5,057
BK911, the difference in performance between the stock airbox and the K&N filters were consistent over all runs made. The stock airbox made more power up to 6,600 rpm, the greatest difference being 7 hp at 6,200 rpm. This was not merely an instance of run to run variation.
Oops! I just went back to reread the other post. I didn't realize there was more than one page. My bad. Maybe next time I'll know all the facts before I open my mouth. Nah, why start now!

Beautiful car.
'71 911E Targa rustbucket
Old 12-31-2004, 10:52 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #15 (permalink)