BMW //MDiscussion on the BMW M1, BMW M3, BMW M5, and the BMW M6
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Please dyno with the airboxes and hood closed - there have been similar hood-up results with other intakes which actually showed negative gains in the real world/hood down.
Interesting results?
On M5Board it had been posted revealing different results from the AFE intakes. Power was lost. Work was done at RPI.
Also I initially had the catback SS race exhaust and did not generate any power though I really didn't expect to.
btw did the the determination of the power gains from these mods include removal of the CF's?