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Damn exhaust leaks...

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Old Mar 25, 2018 | 12:14 PM
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St. Jude Donor '13, '15
Default Damn exhaust leaks...

Every year it seems I have some slight exhaust leak with condensation dropping out of the connections. I've got a complete aftermarket setup from the block back (i.e. LT's, xpipe, and axle-back. I'm using torc-type bands that are plenty wide to span the joints. Do these loosen up over time, especially sitting in a cold garage all winter? Do leaks like these cause any performance or rough driving conditions?
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Old Mar 25, 2018 | 03:57 PM
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Originally Posted by imgn tht
Do leaks like these cause any performance or rough driving conditions?
My guess is most likely not. The condensation should disappear when the engine heats up (this is normal) and the leak will just be annoying.

If you want to fix it "for real" take your car to a pro muffler place and have them put a bead of weld all the way around your joints. It will take them about 30 minutes max.
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Old Mar 25, 2018 | 05:47 PM
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Originally Posted by billschroeder5842
My guess is most likely not. The condensation should disappear when the engine heats up (this is normal) and the leak will just be annoying.

If you want to fix it "for real" take your car to a pro muffler place and have them put a bead of weld all the way around your joints. It will take them about 30 minutes max.
Thanks, yeah haven't driven it long when I notice the water drips, weather still keeping me mostly in the garage or short trips local. Thought about welding, but would kind of screw me later if I need to remove for repairs or eventually take back to stock to sell. As long as it isn't hurting performance, I'll just recheck the tightness and deal will it.
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Old Mar 25, 2018 | 07:18 PM
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Originally Posted by imgn tht
Every year it seems I have some slight exhaust leak with condensation dropping out of the connections. I've got a complete aftermarket setup from the block back (i.e. LT's, xpipe, and axle-back. I'm using torc-type bands that are plenty wide to span the joints. Do these loosen up over time, especially sitting in a cold garage all winter? Do leaks like these cause any performance or rough driving conditions?
Not sure if you’re up to it, have the space and tools needed to perform what I’m going to suggest but I would recommend that you jack your car up off the ground high enough to crawl underneath it safely using 4 jack stands. Loosen up the center H/X pipe mounting bracket at the front bell housing and the two muffler mounts at the rear to give you enough slop to pull the sections apart. You won’t need to unbolt the flange connections.

Loosen all the clamps that hold your exhaust system together and one by one pull them apart and apply (liberally) with a small brush, Permatex 80335 Muffler and Tailpipe Sealer to the inner and outer surfaces of the pipe fittings. Reassemble and tighten the clamps from front to back when you’re done applying the sealer.

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When your exhaust system was assembled, they might not have been tightened up together at all the joints and probably aren’t air tight. A great part about using the sealer is that it gives you the best results while not being permanently welded and the system can be disabled easily if needed later.

I did exactly that when I did my cat-back two years ago and I have not had any exhaust leaks or dripping condensation what’s so ever.
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Old Mar 25, 2018 | 08:49 PM
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Thanks CJ1957. I'm more than comfortable doing that. I have the necessary tools and such...I installed the headers myself on jack stands. Never thought of this product at the time. Local parts stores carry it in stock, so I'll check that out and give it a go the next time I have a free day to mess around with it. Does it dry in a way that may prevent the tips from moving crooked too? Two for one if so.
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