Thread: Stellings & Hellig air filter horsepower numbers
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Old 04-22-2004, 04:47 AM
Jack Zupan Jack Zupan is offline
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I had my car on a chassis dyno about six weeks ago and saw essentially no difference. I have a FE 427, dual quads with the S&H and K&N filters. In fact the no filter run was slightly lower in both horsepower and torque but I don't think the numbers were significantly different.

Jack Z.
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