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factory exhaust mainfold polish?

Discussion in 'A4/S4 forum(B5 Chassis)' started by phd, Jun 7, 2008.

  1. phd

    phd New Member

    Feb 22, 2008
    Likes Received:
    Hi fellows

    Previously, you guys have answered me a lot of answer regarding the ECU and thanks for that. You guys are great. My car is in the workshop now and waiting for the parts arrive.

    During this period, I had chatted with my mechanic, he mentioned my factory exhaust manifold should need to polish cos I am upgrading my ECU. This will make the air flow run better but it is not cheap. Around 200. But I have found the polished exhaust manifold in ebay and the price is around 200 as well.

    Should I polished the factory one or buy the new one from ebay? I remember there is some difference shape or design exhaust manifold from 1997-2002 audi a4 b5 1.8 turbo but I can’t remember what it was.

    Here is the link.

    I am not sure would this fit on 97 1.8 turbo AEB engine? Please help……:weight_lift2:

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  3. jcb

    jcb Active Member
    VCDS Map User

    Sep 19, 2005
    Likes Received:
    give me the £200 i will happily dispose of it for you!
    if you have money to burn that easily spend it on better stuff.
    I have been there done that and have the embarrasment burnt into memory.
    EBay exhaust manifolds from Chine are in my opinion and experience utter sh1te!
    they conveniently don't show you a close up of the most complex aspect of the merge collector welding....mainly because it has been filled with so much weld it looks like a crow shat in there.

    don't do it get a decent cast mani or go to designer dubs and get a proper equal length tubular knocked up

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