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      04-27-2013, 02:52 AM   #1
jannisa
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Interested in your DP review

You guys who happened to install a set of downpipes no matter if catted or catless do you mind giving me a heads up on these aspects?

1. How was the sound overall affected and

2. Did you notice any difference in the operating oil temperature ?


The tuning potential is given but I 'm only interested at this point in your comment regarding matters above as I have sourced a set of used catless ones at a great price and am standing at a crossroads right now.

Thx

Last edited by jannisa; 04-27-2013 at 03:04 AM.
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      04-27-2013, 08:43 AM   #2
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1. catless are significantly louder, deeper noise from the exhaust - really roars when you get above 3500 rpm

2. no

3. improved turbo spool
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      04-29-2013, 02:34 PM   #3
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1. catless are a bit louder, but OK, really nice for my tastes

2. yes! oil temp are lower during hard use
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      04-30-2013, 01:13 AM   #4
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Thank you, gentlemen.
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      05-02-2013, 02:02 PM   #5
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Would some people mind listing who/where they got their DPs from? I'm also in the market to get some catless DPs and I'm not sure which vendor to go with.
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      07-23-2013, 03:02 PM   #6
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2011 BMW Z4 35i  [5.00]
sorry for bumping an old post, Is AR still the only Downpipe for Z4 35i?

Everything for our car are more expensive than other n54 cars it seems.
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      07-29-2013, 03:19 AM   #7
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Quote:
Originally Posted by army_men View Post
sorry for bumping an old post, Is AR still the only Downpipe for Z4 35i?

Everything for our car are more expensive than other n54 cars it seems.
I ve been hearing very good things abt AR however I am gonna have to go with Autowerke, they only have catless dps ..
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