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04-13-2017, 10:28 AM | #23 |
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cat back is pointless on the 650 unless you are doing A LOT of other mods, in which case you should do catless downpipes as well. Axlebacks are sufficient.
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04-15-2017, 08:05 PM | #24 |
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04-15-2017, 09:49 PM | #25 |
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M6 diffuser w / square tips
A user named PTK has this setup... I am considering it myself... Check out the thread "Pics of your 6", page 7 for pics of PTKs ride...
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04-16-2017, 07:21 PM | #26 |
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I do indeed. it works.
But I wouldn't mind wider quad pipes to fill in the space a tiny bit better. It looks good with the stock m sport exhaust but not perfect. there is about 0.5 inch more empty space above the pipe than below it when you pair the square tip exhaust with the M6 style bumper and V style diffuser. I am pretty picky and I guess it's only noticeable when you squat down near the ground... but larger quad pipes would look better. |
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06-22-2017, 06:02 PM | #27 |
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06-23-2017, 03:22 PM | #29 |
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Confused what question you are asking? If you are asking about the diffuser being one or 2 pieces, you just need one piece and that is the M6 diffuser. Is that $340 amount painted or not? If just primed, check out BMW of Stratham part #51128052677. They were the best deal I could find and it was $170 shipped to Denver, CO. If that $340 is painted though, that is great deal.
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06-26-2017, 11:11 AM | #32 |
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06-30-2017, 01:19 PM | #33 |
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I would also tend to agree but you kind of have to be careful with going bigger than the 3" tips. the way the outlet pipes of the mufflers are installed I'm not sure it allows you to go with a larger diameter.
As it is already the 3" tips are within a centimeter of each other. |
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09-01-2017, 04:53 PM | #34 |
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Hey Gentlemen, apologies to pull up this old thread, but i need a little help from the experts lol. I just purchased a 2016 640xi and i'm interested in upgrading to the 4 quads look, this is just for looks. I think it looks way better. So with that, can somebody tell me the easiest way to go about doing this?
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09-11-2017, 01:36 PM | #35 | |
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Quote:
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01-28-2018, 02:50 PM | #36 | |
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Quote:
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01-22-2019, 07:20 AM | #37 |
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Hi. Sorry, replying to a really old thread but it’s an extremely useful one. And I needed a bit more info. I’m thinking of doing the same swap of the square tips to quads with a new diffuser. Question on the tips. What’s the ideal length of the new tips so that they don’t stick out much past the bumper? 4”? 5”?
The specs I have so far for the tips are 2.25” inlet, 3.25-3.5” outlet...and just need the length. Many thanks! |
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03-14-2021, 05:49 PM | #39 |
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What brand and where did you get the side skirts and front spoiler lip?
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01-31-2022, 09:30 AM | #40 | |
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I just received the 1-piece splitter, and it looks like I would have to remove that piece of plastic in order for the new diffuser to go on, but I am guessing that requires removing the entire bumper and I don't want to do that if possible. |
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