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AFE's two dyno's were done months apart. Humidity was over 20% less when they dyno'ed with their intake. Also both dyno's were done with the hood open so completely pointless dyno's unless you drive with your hood open.
me neither just comparing temperatures of Gruppe M System, i would always stay with the oe setup !
THANK YOU!! Under hood temps, especially in traffic, can rise and defeat any potential gains. K&N also did their dynos with the bonnet open.
I always advise people that if they want the sound, or the under hood look, spend the $ on an intake. But if they want a usable power gain, intakes only make sense if they are capturing outside air and if they are part of a complete upgrade including exhaust, tuning, and intake -- and even then...
You hear it sputter every now and then, but it's not much louder than OEM. Just larger volume ducting and smoother flow to a free flowing filter. I've run the AWE intake and the CravenSpeed intake and didn't really care for the sound. Sounds like the car has the shivering fits. I was hoping Forge would come out with a version of their diverter/BOV like I had on my R56. That actually served a purpose to bleed off excess boost when shifting, making upshifts way smoother.