05-14-2019, 07:51 PM | #1 |
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Catless downpipe stinks!
Ok guys, I installed an ER catless downpipe and my eyes burn every time I drive the car! This is with the windows closed. I figured it would smell somewhat from the outside or If I had the windows open but this is bad.
Ive owned other cars with no cats and it was never like this. I dont understand how people are tolerating the smell when going this route. Im planning on putting back the stock converter, but was wondering if there might be something else to check that might be amplifying the condition? |
05-14-2019, 09:07 PM | #3 |
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05-14-2019, 09:14 PM | #4 |
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I went to the website to see what the downpipe looks like. I didn't see one for a F15 N55, which one did you order?
EDIT: I found it on a different website and looks like it doesn't need gaskets. My bad. But it does sound to me that you have a leak. Last edited by Some Asian Guy; 05-14-2019 at 09:23 PM.. |
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05-15-2019, 10:57 AM | #5 | |
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Most likely is the installation. Is it a brand new downpipe or used one?
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05-15-2019, 02:50 PM | #7 | |
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What's the best way to check for leaks? |
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05-15-2019, 02:53 PM | #8 |
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05-15-2019, 03:30 PM | #9 | ||
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You can do visual or sniffer (not sure if you can rent from AutoZone or PepBoys). Quote:
So, if you have leak, it will get sucked in. My guess is your V-Band or O2 sensors didn't get installed back properly.
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05-15-2019, 04:05 PM | #10 |
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My guess is it just stinks.
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05-15-2019, 08:09 PM | #11 | |
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May want to check that too.
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05-15-2019, 08:25 PM | #12 |
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soap n water spray test lol. just spray the seams/joints/connections really well and see if it bubbles, unless u have a large gap where the soapy water wont seal and blow bubbles.
im just wondering if theres some kind of coating on the pipe that is getting burned off. i remember my mazda was horrible when new. when the engine heats up and burn off the coatings (rust prevention coatings/paraffin wax?), it smelled like burning engine oil along with stinging eyes, after a few thousand KMs though it was fine.
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05-15-2019, 10:20 PM | #13 |
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Take a bike tube and clamp onto exhaust end. Pump exhaust with air. Listen for leaks.
Or if you do a visual inspection, you may see black marks where it leaks. But even if you have no leaks, the exhaust coming out of the pipe will smell because you don't have cats. |
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05-21-2019, 09:53 PM | #15 |
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Would also be interested to see if you found a leak. I have the same issue, it smells like straight gas, I've had it on other cars before but never this bad. It also sounds a little raspy in low rpm but I smoke tested it and I couldn't find any leaks 🤷🏼*♂️
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05-21-2019, 10:40 PM | #16 | |
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Is your AC set to circulate or fresh air?
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05-23-2019, 09:07 AM | #18 |
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Ben, have you install this on any other local customers? How are they doing with them?
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05-23-2019, 09:59 AM | #19 | |
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Installed locally and don't have issues with it. Sold bunch of them across the US and internationally, this is the first complaint I've ever heard.
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05-23-2019, 01:16 PM | #20 |
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