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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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Old 02-02-2013, 12:07 PM
Eliv Eliv is offline
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Location: Washington
 
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Mein Auto: 328i
Purpose for material used for valve cover

Why is abs material used for valve cover instead of metal . What's its benefits ?
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Old 02-02-2013, 01:21 PM
hondo402000 hondo402000 is offline
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Location: Charlotte, NC
 
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Well for one its lighter in weight, in order to gain MPH, got to make things that weigh less

other than that, I cannot figure why they would use plastic, not sure its ABS type, some kind of hi-temperature injection molded composite
like the intake manifold, Plastic
oil filter cap Plastic
bumpers plastic
head light covers plastic
even the radiator tops and bottoms are plastic too

if they can make it out of plastic they will, weight savings
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Old 02-02-2013, 10:53 PM
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08 335Ci 08 335Ci is offline
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Mein Auto: 2008 335Ci
Less noise. It's part of the 'emission' standards the feds shove down the manfacturer's throats.

And here you thought all those engine covers and hood blankets were to make things pretty.

It's also cheaper, no machining required.
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