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Old 12-08-2011, 10:51 PM   #1
kh15
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Default Driving with an exhaust leak...

I know I know its super ghetto! but after 60k the donut gasket between my cobb dp and my borla hush gave out. its pretty bad and you can see exhaust flowing out when you look under the car. Is it ok to drive like this for one or two days until I can get some free time to crawl under and fix it? Besides my car being loud are there any other negative effects?

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Old 12-08-2011, 10:55 PM   #2
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You might not want to sit in it while it's sitting still, you'll be getting some exhaust in the cabin. Moving you should be OK. As far as being a loud, annoying dick, yeah, it'll be loud. It will be real loud. You might run the risk of getting a ticket.
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Old 12-08-2011, 10:57 PM   #3
kh15
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it quiets as things heat up but when I first start her up...yea its loud! Right now I'm more concerned with damaging my car driving with a leak though, but Im pretty sure I will be fine?
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Old 12-08-2011, 11:04 PM   #4
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You can drive it from now until the moon cracks in two and we ride big horses like in the old cartoon Thundarr the Barbarian and it won't do crap other than be loud.

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Old 12-08-2011, 11:14 PM   #5
kh15
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lol ok great! On a side note though I dont know how you guys stand those loud exhaust systems! I have driven for about 10 minutes so far and i was going crazy!

For future reference what type of exhaust leak do you NOT want to drive with? Manifold leaking at the head?
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Old 12-08-2011, 11:30 PM   #6
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Probably anything pre turbo...
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Old 12-09-2011, 12:45 AM   #7
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even pre turbo won't be too bad, but you will throw codes, your check engine light will come on, and you will get FAR less boost it will take much longer to spool. With any kind of exhaust leak, if you have to drive with it best practice is to crack your windows while you drive so the fumes don't get to you.
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Old 12-09-2011, 08:55 AM   #8
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Plan on fixing it tomorrow. Really weird how it just happened all the sudden. Went out of town for 6 days came back and it just didn't sound, and has just gotten worse and worse the more I drive it.
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Old 12-09-2011, 09:22 AM   #9
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Happened to me too. I had a huge black mark in my engine bay where exhaust was coming out. Surprise you haven't thrown a code for your post o2 being too lean.
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Old 12-09-2011, 10:43 AM   #10
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Quote:
Originally Posted by 06LGT View Post
Happened to me too. I had a huge black mark in my engine bay where exhaust was coming out. Surprise you haven't thrown a code for your post o2 being too lean.
no 02 sensors past the dp. My leak is right where the dp meets the midpipe
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Old 12-09-2011, 10:53 AM   #11
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Oh I guess misread so you're basically running open dp nice! Mine was at the turbo haha.
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Old 12-09-2011, 01:53 PM   #12
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Does this gasket often fail on stock components?
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Old 12-09-2011, 01:57 PM   #13
kh15
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Quote:
Originally Posted by f20c333 View Post
Does this gasket often fail on stock components?
I have no idea...mines has 80k on the clock so im not complaining that it finally gave up the ghost.
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Old 12-10-2011, 02:02 AM   #14
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total nightmare and a half!

This flange rusted through and just broke apart so it was leaking 360 degress around the pipe...

Luckily I still have this guy but it looks like the flange on my cobb downpipe is slightly warped so we will just have to see once I get my hands on some gaskets.

its always the smallest issues that are a pain! Not to mention after 4 CT winters I had to use about 2 gallons of pb blaster and my impact to break free the bolts.

Question though when re assembling my exhaust can i lube up the pipes with some anti seize to help them slide together and in? I cleaned them up as much as I could with a wire wheel but I know its going to be a pain trying to fit them back together..
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