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      01-29-2013, 01:33 PM   #8
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Drives: F10 M5 SpaceGray/SO
Join Date: Oct 2012
Location: Michigan, USA

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Originally Posted by johntomferg View Post
so we've got caps, snorkles, wrinkles, and trunks. Sounds like a regular beach party.

Watching this thread for the 20+hp gain graphs.
Finished with the passenger side filter and I'm so glad the corner screw that's slightly buried isn't the PITA like the driver's side! I started the car and revved it to must have at least 20 more HP!! Just kidding, I don't trust my butt dyno for supposed small HP increases. If my car is especially dirty and I wash and wax it, the drive after seems like the car is much faster to me, so I don't have any faith in that measurement. But I do have it on good authority that the cars with the snorkel do have at least 10 more HP than those that don't.........!! A late BMW mod to the induction system.