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  1. #1
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    EFI-Logic downpipes have arrived

    My EFI-Logic downpipes have arrived for my 2012 X5 50i.

    My initial impression is that they are well made. Nice thick flanges, nice welds, well packaged.

    I was happy dealing with EFI-Logic. They delivered exactly when agreed and packaged everything well.

    Hopefully, I can beat the rain and get them installed today.
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  2. #2
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    Thanks for posting the pics, just waiting on your update when you get the right ones.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    1 out of 1 members liked this post. Yes Reputation No
    Any updAtes

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    Yes, updates?

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    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    1 out of 1 members liked this post. Yes Reputation No
    I ended up going with catted AR Design downpipes. EFI Logic was not able to deliver in the timeframe I needed. The downpipes that EFI Logic had designed were for a bolt on flange and my X5 has a slip on connection. Just to be clear, EFI Logic made a very nice product and we did try to work together. They just were not able to deliver in the timeframe I needed.

    I am happy with the AR Design catted down pipes I have now. They really helped the low/mid-range and supposedly add +35-40 HP peak. I hope to get to the track soon to see the improvements. Plus I can race my X5 against the minivan my wife made me buy (Mercedes R63) :-)

  7. #7
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    Click here to enlarge Originally Posted by Brian425 Click here to enlarge
    I ended up going with catted AR Design downpipes. EFI Logic was not able to deliver in the timeframe I needed. The downpipes that EFI Logic had designed were for a bolt on flange and my X5 has a slip on connection. Just to be clear, EFI Logic made a very nice product and we did try to work together. They just were not able to deliver in the timeframe I needed.

    I am happy with the AR Design catted down pipes I have now. They really helped the low/mid-range and supposedly add +35-40 HP peak. I hope to get to the track soon to see the improvements. Plus I can race my X5 against the minivan my wife made me buy (Mercedes R63) :-)
    Any dyno numbers?

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  8. #8
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    No dyno numbers. I will get it back to the track and see what the MPH is.

    Maybe I will bring the X5 and the R63 to the Dyno one day for fun.

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