Not Ranked
Keith Craft told me that a 20% loss was average for Cobras. He had dyno'ed motors and then installed them it Cobras. Then dyno'ed the car.
I think because of the way they are made, sidepipes are the largest contributories to horsepower loss. Some have an 1 7/8" core with a lot of packing. Other have 3" core and little to no packing.
Dwight
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''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
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