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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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05-21-2020, 09:39 PM | #1 |
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Dangerous Catless Smell Driving
I took this screenshot because Tapatalk wouldn't let me load the video I originally took. Anyways my exhaust system (UEL catless headers, high flow fp & custom catback) is being vacuumed into the car via this bar (right behind the rear bumper) and in turn coming into the cabin while driving with windows down. Anyone know what I should do? Cars naturally have holes to release air but this is not safe to drive in. I blasted the AC, closed all windows and closed my garage door with car off, hovered a cigarette around the bottom of car to see what made smoke move this most, and by far this bar had the most movement. I also put a little trees car fresher in my spare tire well and my whole car smelt like the "Black Ice" scent when I rolled the windows down. Any help is much appreciated. My chest gets tight when driving. This doesnt happen with a stock fp only high flow fp. Thank you!!
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05-21-2020, 10:01 PM | #2 |
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Logically it makes sense to use the stock front pipe then. If a modification causes you discomfort, take it off.
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The Following User Says Thank You to DarkPira7e For This Useful Post: | humfrz (05-21-2020) |
05-21-2020, 10:08 PM | #3 | |
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05-21-2020, 10:38 PM | #4 | |
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05-21-2020, 10:50 PM | #5 |
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05-21-2020, 11:12 PM | #6 | |
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OR, find and fix the exhaust leak. OR, extend the exhaust system - |
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The Following User Says Thank You to humfrz For This Useful Post: | coconutboy (05-21-2020) |
05-22-2020, 12:52 AM | #7 | |
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05-22-2020, 01:03 AM | #8 |
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You have an exhaust leak, or you just aren’t familiar with catless cars. Ever been around or inside a classic car? It isn’t good. It is why we have catalytic converters. The irony of you saying it is not safe to breathe after removing the cats is kinda hilarious.
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05-22-2020, 02:06 AM | #9 |
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I'm fully catless and get the occasional whiff of fumes from wind but not to this extent and I never touched the holes you're referring to. Look for black carbon deposits leaking from the flanges. If you can't hear it you'll see it. You also say custom catback so any manor of weld defects or uneven flanges is a definite possibility.
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05-22-2020, 10:29 AM | #10 |
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This is his second thread on this issue. He ignored the advice in the first thread.
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The Following User Says Thank You to NoHaveMSG For This Useful Post: | DarkPira7e (05-22-2020) |
05-22-2020, 10:33 AM | #11 |
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05-22-2020, 10:50 AM | #12 | |||||
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05-22-2020, 11:40 AM | #13 |
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I'm not sure what it is about the internet where people who don't get the answer they want to hear just keep asking differently, hoping they'll find someone who gives them something they want to hear.
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05-22-2020, 11:43 AM | #14 |
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They like the easiest answer.
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