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11-02-2009, 11:50 AM | #1 |
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Z4M Custom Exhaust
I received word today that my car received its full exhaust today. My car was deposited for four weeks getting the system designed and tested. I haven't had the chance to listen to it yet, but from all accounts it's spectacular and it's street legal. The exhaust is attached to a set of Evosport headers. So far, the engine light has not illuminated, but I expect it to eventually re-appear since the Kellener-Sport ECU tuning does extinguish the engine light.
Until I return to Germany in December to make more video and evaluate the performance, here are a few pictures.
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11-02-2009, 12:33 PM | #2 |
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Best I have ever seeing on z4m..
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Z4MC_Black Sapphire/Imola-_-DMS ECU ll H&S cat-back ll H&R coilovers ll CF Lip ll Lamin-X ll Matte black kidneys ll Afe drop in ll Afe intake elbow ll RPi scoop ll LeatherZ imola shift boot ll ZHP knob...
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11-02-2009, 02:57 PM | #4 |
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Those are aftermarket cats and they're probably needed to keep emissions in check. With aftermarket headers, there are no cats there...
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11-02-2009, 04:56 PM | #5 |
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Yup...but I run no cats....only need to pass emissions once every two years....so I will just bolt them back into position (for an hour or two)...but I have the ESS tune with the O2 sensors turned OFF.
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11-02-2009, 05:16 PM | #6 |
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Some states like California are very aggressive with prosecuting this type of thing, even to the extent of going after the vehicle owner criminally. You also take a chance of getting caught in a "random" roadside inspection by the CHP. The risk comes down to where you live and how brave/foolish you are.
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11-02-2009, 11:37 PM | #7 |
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It's not possible to get away with an inspection here without a set of cats. We also have an audible limit of 95 db's at 2/3 maximum engine rpm as well.
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11-03-2009, 05:08 AM | #9 |
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It was custom welded. This is a trick to take the sensor out of the direct flow of the exhaust gasses in order to lower the readings and hopefully alleviate a SES light. Only time will tell if it works.
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11-03-2009, 09:23 AM | #10 |
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11-03-2009, 10:22 AM | #11 | |
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11-03-2009, 01:16 PM | #12 |
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Interesting, let me know when I can swing by and hear it.
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11-03-2009, 03:15 PM | #13 |
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Looks good, what size piping?
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11-05-2009, 07:20 AM | #14 |
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You will have to excuse me for not getting back with detailed questions until I return to Germany. I'm presently out of the country until the first week of December. Once I get the car back, I'll make some videos, provide some impressions and answer questions.
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01-21-2010, 12:25 AM | #15 |
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Update
I have had the opportunity to drive the car a while now. With with the aftermarket headers installed and placement of the lamda probes, I now have no SES light! The cluster is now completely clear!
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01-23-2010, 11:00 PM | #16 | |
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and how did that go with the CEL's did it still working no lights? |
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01-24-2010, 01:55 AM | #17 |
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It's not possible to do and still keep the car as a street car. The cats are 100 cell cats and relatively thin.
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01-24-2010, 01:57 AM | #18 | |
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No CEL(SES) light! The DME apparently likes what it is seeing.
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02-12-2010, 10:53 AM | #19 |
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It was cold, but the snow melted and I thought I would take her out for a spin.
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02-20-2010, 03:49 AM | #20 |
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Sounds good, I might be in Wiesbaden today.
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02-20-2010, 05:46 AM | #21 |
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I'll be around. Give me a call if you're in town. I would send you my phone via a PM, but your box is full...
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02-20-2010, 08:25 AM | #22 |
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I didn't make it up there, I'll send you an email sometime.
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