Yukon 6.2, long tube headers installed, help please
May 20, 2018 | 07:34 PM
#1
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Joined: May 2014
Posts: 1,252
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From: VA
Yukon 6.2, long tube headers installed, help please
I installed Speed Engineering 1 7/8'' long tube headers. Great price, fast delivery but I am having a couple of issues.
1) Drivers O2 sensor hits the body when the engine is under load. What do?
- I dropped the header down as low as it could go.
- Drivers engine mount is new, passengers is old. Should I replace the passengers? How can I keep the engine from moving around so much
- I trimmed the O2 sensor which helped a little. Stupid if it works?
- I've stared cutting a hole where the below red arrow points. How best do I cut out enough? Is this the right path?
- Should I have another O2 bung welded in at another angle? (pain in the ***, but will do if needed).
2) I have no cats, stock muffler and resonator delete. How do I quiet this down? Holy **** this is loud and sounds crappy.
- Should I add a cat after the ypipe to quiet things down? I'm planning to do so also for the smell.
- Suggestions on mufflers or other ways to make my neighbors and wife love me again?
O2 Sensor hits here. Its double walled steel where I used a large drill bit to cut space for the sensor. I didn't cut enough.
Trimmed O2 sensor. I can at least drive normally without hitting. I used a dremel.
Another view of the sensor.
Just a quick vid. Not captured the holy ***** nascar sounds at full tilt.
Body shot.
Thanks!
1) Drivers O2 sensor hits the body when the engine is under load. What do?
- I dropped the header down as low as it could go.
- Drivers engine mount is new, passengers is old. Should I replace the passengers? How can I keep the engine from moving around so much
- I trimmed the O2 sensor which helped a little. Stupid if it works?
- I've stared cutting a hole where the below red arrow points. How best do I cut out enough? Is this the right path?
- Should I have another O2 bung welded in at another angle? (pain in the ***, but will do if needed).
2) I have no cats, stock muffler and resonator delete. How do I quiet this down? Holy **** this is loud and sounds crappy.
- Should I add a cat after the ypipe to quiet things down? I'm planning to do so also for the smell.
- Suggestions on mufflers or other ways to make my neighbors and wife love me again?
O2 Sensor hits here. Its double walled steel where I used a large drill bit to cut space for the sensor. I didn't cut enough.
Trimmed O2 sensor. I can at least drive normally without hitting. I used a dremel.
Another view of the sensor.
Just a quick vid. Not captured the holy ***** nascar sounds at full tilt.
Body shot.
Thanks!
May 20, 2018 | 08:00 PM
#2
Add a nice resonator back in, that should tone down the rasp a ton when using the stock muffler. That or a decent sized cat will act as a nice resonator in most cases.
I wouldn't cut a hole but more so just pound the body in with a hammer to make more clearance for the o2 sensor.
I wouldn't cut a hole but more so just pound the body in with a hammer to make more clearance for the o2 sensor.
May 20, 2018 | 08:06 PM
#3
Thread Starter
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Joined: May 2014
Posts: 1,252
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From: VA
Add a nice resonator back in, that should tone down the rasp a ton when using the stock muffler. That or a decent sized cat will act as a nice resonator in most cases.
I wouldn't cut a hole but more so just pound the body in with a hammer to make more clearance for the o2 sensor.
I wouldn't cut a hole but more so just pound the body in with a hammer to make more clearance for the o2 sensor.
I wonder if pounding things in would be enough? Cant hurt to try though I don't have a lift.
Think I could do it on my back?
May 20, 2018 | 08:16 PM
#4
Joined: Mar 2002
Posts: 2,184
Likes: 106
From: FL
I installed Speed Engineering 1 7/8'' long tube headers. Great price, fast delivery but I am having a couple of issues.
1) Drivers O2 sensor hits the body when the engine is under load. What do?
- I dropped the header down as low as it could go.
- Drivers engine mount is new, passengers is old. Should I replace the passengers? How can I keep the engine from moving around so much
- I trimmed the O2 sensor which helped a little. Stupid if it works?
- I've stared cutting a hole where the below red arrow points. How best do I cut out enough? Is this the right path?
- Should I have another O2 bung welded in at another angle? (pain in the ***, but will do if needed).
2) I have no cats, stock muffler and resonator delete. How do I quiet this down? Holy **** this is loud and sounds crappy.
- Should I add a cat after the ypipe to quiet things down? I'm planning to do so also for the smell.
- Suggestions on mufflers or other ways to make my neighbors and wife love me again?
O2 Sensor hits here. Its double walled steel where I used a large drill bit to cut space for the sensor. I didn't cut enough.
Trimmed O2 sensor. I can at least drive normally without hitting. I used a dremel.
Another view of the sensor.
Just a quick vid. Not captured the holy ***** nascar sounds at full tilt.
https://www.youtube.com/watch?v=SbxXTWOxRhs
Body shot.
Thanks!
1) Drivers O2 sensor hits the body when the engine is under load. What do?
- I dropped the header down as low as it could go.
- Drivers engine mount is new, passengers is old. Should I replace the passengers? How can I keep the engine from moving around so much
- I trimmed the O2 sensor which helped a little. Stupid if it works?
- I've stared cutting a hole where the below red arrow points. How best do I cut out enough? Is this the right path?
- Should I have another O2 bung welded in at another angle? (pain in the ***, but will do if needed).
2) I have no cats, stock muffler and resonator delete. How do I quiet this down? Holy **** this is loud and sounds crappy.
- Should I add a cat after the ypipe to quiet things down? I'm planning to do so also for the smell.
- Suggestions on mufflers or other ways to make my neighbors and wife love me again?
O2 Sensor hits here. Its double walled steel where I used a large drill bit to cut space for the sensor. I didn't cut enough.
Trimmed O2 sensor. I can at least drive normally without hitting. I used a dremel.
Another view of the sensor.
Just a quick vid. Not captured the holy ***** nascar sounds at full tilt.
https://www.youtube.com/watch?v=SbxXTWOxRhs
Body shot.
Thanks!
May 20, 2018 | 08:40 PM
#5
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Joined: May 2014
Posts: 1,252
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From: VA
May 21, 2018 | 09:56 AM
#7
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Joined: Jun 2014
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From: At the dump with a clutch
I've got long tubes with a vibrant ultra quiet resonator and stock muffler off a NNBS with a 6.2 and it's completely silent. I would suggest a vibrant ultra quiet resonator right after the header collector.
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May 21, 2018 | 10:58 AM
#8
Thread Starter
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Joined: May 2014
Posts: 1,252
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From: VA