Dual Duct (Dinan-Like) Mod Done!!
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If you can't get dyno or g-tec, just watch the RPM idling between 1500 to 4500 in 3rd gear and see how fast it does (faster better). it is free to test but I admit it is hard to catch or also with a OBD-2 tester will help to see how is the air flow measures (higher flow better).
Originally Posted by tex_phil' post='943916' date='Jul 16 2009, 10:58 AM
You should line the duct with radiant barrier. That will keep heat from the engine from fully going thru.
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From: Saskatchewan Canada
My Ride: 2004 530i
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Do you have the part number for the M5 passenger duct handy?
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Joined: Jun 2008
Posts: 2,696
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From: Saskatchewan Canada
My Ride: 2004 530i
premium package/active steering/auto sunshade/tiag/black dakota leather/logic 7
35% tint all around
19' DPE GT7
Originally Posted by brabusw209amg' post='944018' date='Jul 16 2009, 10:54 AM
M5 duct:
13-17-7-790-057
13-17-7-790-057
edit: the part number was mixed up should be 13-71-7-790-057
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From: Calgary, AB - Canada / Buenos Aires - Argentina
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Originally Posted by uskg76`' post='944030' date='Jul 16 2009, 11:22 AM
Can I do it on 550i?
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Originally Posted by stylezzza' post='943603' date='Jul 16 2009, 12:36 AM
We have to do another run and see if you can keep up with my slk55 now 
