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Old 05-12-2016, 07:09 PM   #1
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White smoke after header install?

So I installed a set of BBK long tubes and an off road x pipe on my 2012 gt last weekend. After a long ordeal with getting the o2 sensors working and getting rid of the trouble codes and the power loss that goes with that, the car runs great.
But, after it started running good, I started noticing a little white smoke coming from the exhaust at idle. Not to mention it still smells like its running kinda rich. Not quite as bad as when the o2s were freaking out but more than what I'd like.
Is this smoke normal for this exhaust set up? I'm running a Bama tune and oil level looks good and had mileage hasn't really changed. I was reading somewhere else on here that it could be condensation burning off and it's just made worse from not having cats but it does it all the time at idle only no matter how long I've driven it. Or it could be oil from the manufacturer in the pipes but I would think that it would've stopped by now after almost a week and plenty of highway driving. What do you guys think?
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Old 05-12-2016, 10:25 PM   #2
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Yes you will get that un-burnt fuel smell along with more smoke. Also when you start these cars and then shut them off the next time you start it, it will smoke. Mine does this when I move it from garage to driveway then later on I go to move it back into the garage it will smoke. I have 14k on my car and it smokes with the off road pipe.
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Old 05-13-2016, 07:37 AM   #3
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The smell is normal with off road xpipe. The cats were the ones filtering the exhaust and since there are no longer there the exhaust isn't being filtered through the cats. Mine smells horrible but that happened the moment I turned my car on after the off road x pipe. As for the smoke I will let someone else chime in as I don't know what it could be
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Old 05-13-2016, 07:58 AM   #4
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The smell is normal with off road xpipe. The cats were the ones filtering the exhaust and since there are no longer there the exhaust isn't being filtered through the cats. Mine smells horrible but that happened the moment I turned my car on after the off road x pipe. As for the smoke I will let someone else chime in as I don't know what it could be
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Old 05-13-2016, 10:52 AM   #5
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OK good. I figured the smell was somewhat normal without cats. I'm still not sure about the smoke. As of today it doesn't seem consistent. I haven't gotten any smoke all day.
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Old 05-13-2016, 03:44 PM   #6
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I was thinking it was just machine oil from the headers , they use it to keep them from corroding while their in storage etc .... but it would eventually burn off
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Old 05-13-2016, 04:01 PM   #7
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Now that I post this question, the problem seems to have gone away after almost a full day of driving. Not a puff of smoke all day. It must have been machine oil...
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Old 05-13-2016, 04:28 PM   #8
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Did you check your headlight fluid?
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Old 05-13-2016, 04:36 PM   #9
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Quote:
Originally Posted by Joaquin_ii View Post
Did you check your headlight fluid?
Haha yeah I topped that off and took an exhaust sample to send off for tuning
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Old 05-13-2016, 04:41 PM   #10
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Haha then you should be all set!
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Old 05-13-2016, 05:04 PM   #11
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Its whatever crap they use to coat the headers for shipping or simply just buildup from whatever sitting on the headers burning off.
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