exhaust comes loose at cats

bluesierra · 08-30-2007, 03:09 PM

I recently got straights (true duals) installed on my 5.3L 04 sierra. Now the exhaust is coming loose at the cat. How can i prevent this from happening again?

Also, I have a site/forum just for GMC SIerra owners. I would really appreciated if you woud check it out as I have spent alot of time on it. Here is the site link : http://www.sierratalk.co.nr

Be sure to check out the forum and join...thanks guys

75K30 · 08-30-2007, 04:14 PM

You have come to this site and are trying to recruit? Huh!!!!!

You mentioned true duals and one cat????? Still have both cats and the factory crossover?
If you have "true duals" then you would have individual pipes coming off of each individual cat and your problem woulld not exist, since it would be welded. But since you have used the single factory ball and flange collector, you are having problems because of the weight hanging from the fasteners. There are only two bolts holding the flange together and it should not support weight. You need to have more support for your system.
Suprised that with all of the time you spent on this other site, that none of the other owners mentioned it.

bluesierra · 08-30-2007, 06:16 PM

Call it what you want. What i really wanted was your help.

03chevy · 08-31-2007, 05:57 AM

i could not have said it better my self 75k30 too much weight on two bolts and will after time break them

gmctrucks · 09-23-2007, 05:59 PM

7k30 I agree with you what more help could one need it explains it all. I called it helping you out.

97SierraStepSde · 10-02-2007, 10:43 PM

haha I found that very helpful 75k30.. too bad ignorance sometimes leaves some 1 in bliss..sucks 4 them! haha

chevyguy · 10-04-2007, 07:31 PM

Quote:

Originally Posted by bluesierra

I recently got straights (true duals) installed on my 5.3L 04 sierra. Now the exhaust is coming loose at the cat. How can i prevent this from happening again?

Also, I have a site/forum just for GMC SIerra owners. I would really appreciated if you woud check it out as I have spent alot of time on it. Here is the site link : http://www.sierratalk.co.nr

Be sure to check out the forum and join...thanks guys

I am not replying until you remove the link to YOUR site, Its just rude what your doing here. There is a very simple cure for this.

08-30-2007, 03:09 PM	#1
bluesierra Junior Member Join Date: Nov 2005 Posts: 2	exhaust comes loose at cats I recently got straights (true duals) installed on my 5.3L 04 sierra. Now the exhaust is coming loose at the cat. How can i prevent this from happening again? Also, I have a site/forum just for GMC SIerra owners. I would really appreciated if you woud check it out as I have spent alot of time on it. Here is the site link : http://www.sierratalk.co.nr Be sure to check out the forum and join...thanks guys

08-31-2007, 05:57 AM	#4
03chevy Senior Member Join Date: Dec 2006 Location: jax,fl Posts: 1,186	i could not have said it better my self 75k30 too much weight on two bolts and will after time break them __________________ A dirty mind is a terrible thing to waste!

10-02-2007, 10:43 PM	#6
97SierraStepSde Senior Member Join Date: Nov 2006 Posts: 106	haha I found that very helpful 75k30.. too bad ignorance sometimes leaves some 1 in bliss..sucks 4 them! haha __________________ Ride Til I Die

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08-30-2007, 04:14 PM	#2
75K30 Senior Member Join Date: Jul 2006 Posts: 2,992	You have come to this site and are trying to recruit? Huh!!!!! You mentioned true duals and one cat????? Still have both cats and the factory crossover? If you have "true duals" then you would have individual pipes coming off of each individual cat and your problem woulld not exist, since it would be welded. But since you have used the single factory ball and flange collector, you are having problems because of the weight hanging from the fasteners. There are only two bolts holding the flange together and it should not support weight. You need to have more support for your system. Suprised that with all of the time you spent on this other site, that none of the other owners mentioned it.

08-30-2007, 06:16 PM	#3
bluesierra Junior Member Join Date: Nov 2005 Posts: 2	Call it what you want. What i really wanted was your help.

09-23-2007, 05:59 PM	#5
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 4,035	7k30 I agree with you what more help could one need it explains it all. I called it helping you out.