1999 E36 318iS - Coupe airbox de-restrict

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  1. 1999 E36 318iS - Coupe airbox de-restrict 
    #1
    robs e36
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    Hi just a quick question sorry if this sounds thick but im still getting used to the e36 iv just looked on the forum and they said to de-restrict the airbox filter is to take all the foam stuff out so the box is empty and thats ment to give me quicker response and make my car sound louder, iv got a twin exhaust on my car already so its pretty loud as it is will removing the stuffing in the airbox give me a quicker response or is it just a miff
     
     

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    #2
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    STE36's Car Details
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    it is true that your car might sound better. but don't do it. the foam is the actual filter. by removing this you will allow the engine to breath in lots of dirt and cause your self problems. if you're looking for it to make some extra noise then an after market cone filter is the way to go. its not likely that you'll notice a difference in throttle response though. however i don't suggest you buy 1 of these as they take in a lot of warm air if not enclosed. i'd suggest keeping the standard air box and just replacing the standard filter with a good replacement like green, etc. hope this helps mate.
     
     

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  5.  
    #3
    robs e36
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    ok cheers mate its not the nosie i want tho iv got the nosie to how i like it i was looking at doing it to get abit more throttle tbh
     
     

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    Quote Originally Posted by STE36 View Post
    it is true that your car might sound better. but don't do it. the foam is the actual filter. by removing this you will allow the engine to breath in lots of dirt and cause your self problems. if you're looking for it to make some extra noise then an after market cone filter is the way to go. its not likely that you'll notice a difference in throttle response though. however i don't suggest you buy 1 of these as they take in a lot of warm air if not enclosed. i'd suggest keeping the standard air box and just replacing the standard filter with a good replacement like green, etc. hope this helps mate.
    The foam isnt the filter? The filter element is the filter, i thought the foam was just sound deadening? As the crappy foam lining the airbox doesnt filter anything
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    I de-restricted mine, took about 5mins... I wouldnt say id noticed anything different, but they will be a difference of a very small amount. The way i saw it, im letting more air in... Thats never bad hey.
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    #6
    robs e36
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    yeah thats true but is it really just sound proofing? it has to be there for another purpose surely
     
     

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    Quote Originally Posted by robs e36 View Post
    yeah thats true but is it really just sound proofing? it has to be there for another purpose surely
    Have you looked inside? Mine had all fallen apart pretty much, there was loads crumbled away in the bottom also, maybe someone else can elaberate, But im 99% sure its just a lining of sound deadening. As its only around the outside.
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    #8
    robs e36
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    is it much louder mate when you take it all out?
     
     

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    Thats easy...

    Its only there to sound prof the intake further than the resenator that stupid box on the box...

    Yeah foam was just crumbling away... its worst as if you let it stay there it could go into your engine as the stupid stuff is on the top as well...

    If you do go for a air filter get a heat shield to go with it... I am sure you can find some on e-bay - or use a K&N 57i Gen II and modifiy it to fit yours as they are only sold for 6pots

    Yes you can de-restrict it... see that silly plastic looking thing... heres a "How to..."

    http://www.bimmerforums.co.uk/forum/...airbox-t54080/

    There you go... Enjoy the VERY tiny bit more respones you get...

    To help with a bit more power and smothness get a re-map done mate adds around 11-15bhp


    E36 328i se - Journal
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  14.  
    #10
    robs e36
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    cheers mate so its best to just get rid of it then lol will it make it much louder? iv got a twin exhaust on it so its pretty loud already
     
     

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