Thread: Gold Foil
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      08-01-2012, 10:12 AM   #1
TxStig
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Drives: 2008 E92 M3 Jerez Black
Join Date: Aug 2012
Location: Houston, TX

Posts: 111
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Gold Foil

I have searched but have yet to see anybody with their airbox covered with reflective gold foil...

http://www.fortune-auto.net/reflectivefoil.htm

http://forum.e46fanatics.com/showthr...573&highlight=

I live in Houston and can see the benefits. This is used on racecars a lot. Insulating even the stock airbox from the heat of the engine bay could lower intake tract temps significantly, this should in theory increase horsepower. Granted it may not be much...buuuuttttt its an NA motor so every little bit helps right?

Has anybody done this?

Thanks in Advance...

TxStig
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