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Old 07-31-2014, 07:07 PM   #81
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Too loud to be caused by a missing stud on both sides.

I don't think the header flange was able to sit up flush against the head because of the obstruction with the torsion bars.

The camera obviously does not pick up how loud the exhaust is. The wind coming in the back window sounds louder in the clip below.

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Old 07-31-2014, 07:56 PM   #82
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That sounds like alot more than just a small leak. Once it gets revved up it doesnt sound too bad. Check that seal man!
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Old 07-31-2014, 08:11 PM   #83
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The seals are tight. The flange just can't get flat because the torsion bars are blocking them.
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Old 07-31-2014, 08:48 PM   #84
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Hmm...that's no good. So is the header still resting against the torsion bar?
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Old 07-31-2014, 09:18 PM   #85
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Apparently.

I thought the guy I was talking with yesterday was going to fix that. I guess he decided there wasn't a simple fix.
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Old 07-31-2014, 11:19 PM   #86
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If he said he was going to fix it Id take it back and tell him to fix it!

Ah, its further down the line just after the collector where it connects into the Y-pipe. Because its leaking there its messing up your O2 sensor as the O2 sensor is further down the line if I remember correctly. If yours is at the mani, one of the holes on the header, your fine but the sound is just off.


Hopefully my dad made some progress today and Ill be able to get things sorted tonight and drive it to work tomorrow. Ill get a video of it.


JP, Ive heard reports of the truck acting weird when cold and on open loop. Thinks like throttle response and what not being weird. Nothing major. Then they say on closed loop everything is fine and they get better throttle response. You have any differences in closed and open loop?
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Old 08-01-2014, 01:18 AM   #87
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if the flange is resting on the torsion bar, why cant the muffler shop simply cut the header back far enough to use a piece of custom bent pipe to go around the torsion bar? you need to get a picture so for reference. there might not be enough pipe to trim.
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Old 08-01-2014, 01:50 AM   #88
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I'm not noticing any performance differences, John, but then the truck is loud as shit so I'm not trying to Hot Rod it around town, either.

You guys need to look at these pics again. Look where the driver's side header is mashing against the torsion arm. That prevents the header flange from seating. They could cut it, sure, but that would pretty much mean cutting the headers off about 6 inches from the collector.

From Post 67:

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Old 08-01-2014, 05:13 AM   #89
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Man... that's a bad way.

Guess you need to SAS it :P

Seriously though how hard would it be to cut the header off and weld in a couple of 2 or 3 inch long pieces of bent pipe to adjust the angle? With it sitting like that it's going to jack the whole system up as the front end bounces around on the road.
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Old 08-01-2014, 05:20 AM   #90
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Agreed. An exhaust shop should be able to do the job.


As for mine, imagine a very long string of expletives. Thats how I feel about it at the moment. That side will not line up. I might cut the Y-Pipe tomorrow to make it fit. The header is rotated counter clockwise maybe 12-20 degrees. I have a jack under here right now to try to push it up but it aint working. Time for he sawzall on brand new stuff!!!! Shit.
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