1996 E36 328i headers (will they fit?) and de-cat? help? - Page 2

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Thread: 1996 E36 328i headers (will they fit?) and de-cat? help?

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  1.  
    #11
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    mybeemer's Car Details
    Model of Car:
    328i
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    1998
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    intake manifold and throttle body is £500 (fitted) and then you need a map, £300, as you have changed the air/fuel mix
     
     

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  3.  
    #12
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    mybeemer's Car Details
    Model of Car:
    328i
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    when I had a Skyline the best down pipe (greddy) had straight pipes, unlike the M3 manifold shown, which looks a bit of a mess?

    The stainless one (on the link) has straight pipes but my reservation is that 3 go into 1 a bit quick which could restrict air flow otherwise it looks OK to me

    A stainless downpipe will be shiney but I don't think downpipes, exhausts or decats will help a non turbo engine much without some internal engine work.

    Try the American spec M3 cams with the manifold kit and map to get full benifit from any secondary upgrades like an exhaust
     
     

  4.  
    #13
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    TheEnd's Car Details
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    540
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    1998
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    Your 'liner will have had straight pipes as it has to go into a turbo, and on the other side, has air blowing in pushing the exhaust gasses out.
    With an NA car, tuned pulses from the exhaust are used to help suck the exhaust gasses out, so the manifold on the M3 has a lot of work going into it to get the diameters and lengths perfect. In a case like that, it needs equal length pipes, so the shortest pipe has to kink a few times to hide the extra slack.

    They will sometimes use equal length manifolds on turbo cars, but for the most of it, trying to get the gasses out easily is a wasted effort when they run straight into a turbo anyway.
     
     

  5.  
    #14
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    mikim's Car Details
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    Hi,
    So just to confirm here.. an M3 Evo exhaust system (inc manifold) will fit onto a 328i M52 lump, and thread down the chassis (which I presume is the same)?
     
     

  6.  
    #15
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    TheEnd's Car Details
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    Yep, infact the 3.2 system is ideal for M52s as it has holes for the lambda sensors in the manifolds. The 3.0 version doesn't, so you'd need to add some.

    Apart from that, the complete system bolts on, chassis are the same.
     
     

  7. The Following User Says Thank You to TheEnd For This Useful Post:

    mikim (21-07-2010)

  8.  
    #16
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    mikim's Car Details
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    Thanks for that. I may know of one going free Could save a few ££.
     
     

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