Whats Wrong With My Exhaust!?!?!
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Whats Wrong With My Exhaust!?!?!
I currently have strup headers on my car and use to have an injen true dual exhaust. Problem was the exhaust always scrapped on things even though it was stock height!
I figured it was the exhaust and decided to listen to some people claiming it was the injen exhaust so i came across a good deal on a brand new nismo catback so i bought it.
I just installed it tonight and on start up everything was fine. Sounds awesome!!
So now i have Strup headers, stock cats, and nismo catback.
I installed everything correctly but i have a banging/rattle/horrible sound like the exhaust is banging against something underneath the car.
WHAT IS THIS!?! I believe its the strup headers are to long or something and make everything hang down to low but i dont know.
Any suggestions?!?
I figured it was the exhaust and decided to listen to some people claiming it was the injen exhaust so i came across a good deal on a brand new nismo catback so i bought it.
I just installed it tonight and on start up everything was fine. Sounds awesome!!
So now i have Strup headers, stock cats, and nismo catback.
I installed everything correctly but i have a banging/rattle/horrible sound like the exhaust is banging against something underneath the car.
WHAT IS THIS!?! I believe its the strup headers are to long or something and make everything hang down to low but i dont know.
Any suggestions?!?
#3
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you have 3 header bolts that came loose on the drivers side, causing the exhaust to sit back farther than it should be which in turn is causing it to rub on your transmission and your rear diff. If you do not remedy this problem it will lead to the dreaded synchro problem with in the transmission and also the exhaust rubbing the rear diff will super heat the diff fluid causing boil over and catastrophic gear failure.
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Originally Posted by Billhyco
interested in selling that injen exhaust???
#6
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Originally Posted by USN HM 350Z
you have 3 header bolts that came loose on the drivers side, causing the exhaust to sit back farther than it should be which in turn is causing it to rub on your transmission and your rear diff. If you do not remedy this problem it will lead to the dreaded synchro problem with in the transmission and also the exhaust rubbing the rear diff will super heat the diff fluid causing boil over and catastrophic gear failure.
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I have the Nismo exhaust, headers and CAI. Ever since I had the headers done I've been hearing a rattle, usually in the 3k-5k range. I took it back to the dealer (all work was done there), did a test drive and they said they'd look into it. They told me part of the exhaust is hitting the cross-bar, and that it just needs to be heated up and bent a fraction of an inch. Something they said I can take to any muffler shop and have done. Well after bch'ing about how it's THEIR part and THEY did the install, they called back and said they'd yank out the exhaust and get it fixed for me. (They're probably going to go put a nice CREASE in the pipe for me now )
Given that a search turned up this thread I guess this is a common problem??? So could Nissan have mis-designed a part for their own car, or is there just barely enough tolerance that in the manufacturing process these things occasionally happen? Or are me and 3FIFTYZEE just unlucky?
Given that a search turned up this thread I guess this is a common problem??? So could Nissan have mis-designed a part for their own car, or is there just barely enough tolerance that in the manufacturing process these things occasionally happen? Or are me and 3FIFTYZEE just unlucky?
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They have to put the spacers on that go on the bolts in the crossmember. The spacers come in the kit. They lower the crossmember about a 1/8th inch or so, preventing contact. I would guess that is the problem.
The spacers are U shaped, they go between the crossmember and the frame, the bolts go thru them. You just loosen the crossmember bolts, slide in the spacers, and tighten. That is why the U shape, so you don't have to take the crossmember off to put them on.
BTW, when I took my Z in for the full tank filler fix, the service manager mentioned I had an aftermarket exhaust. I said, hey that is a NISMO, a NISSAN not aftermarket exhaust. And he said, "that's what I said, an aftermarket exhaust". What a dick. But typical of the Nissan dealers I have been to.
The spacers are U shaped, they go between the crossmember and the frame, the bolts go thru them. You just loosen the crossmember bolts, slide in the spacers, and tighten. That is why the U shape, so you don't have to take the crossmember off to put them on.
BTW, when I took my Z in for the full tank filler fix, the service manager mentioned I had an aftermarket exhaust. I said, hey that is a NISMO, a NISSAN not aftermarket exhaust. And he said, "that's what I said, an aftermarket exhaust". What a dick. But typical of the Nissan dealers I have been to.
Last edited by gringott; 12-07-2006 at 07:41 AM.
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Originally Posted by gringott
They have to put the spacers on that go on the bolts in the crossmember. The spacers come in the kit. They lower the crossmember about a 1/8th inch or so, preventing contact. I would guess that is the problem.
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yea my exhaust is still banging really bad. i just bought nismo headers to match my nismo catback so if that doesnt fix the problem im going to take it in and have a shop fix it. And about those spacers, i didnt get any with my nismo exhaust.
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Originally Posted by 3FIFTYZEE
yea my exhaust is still banging really bad. i just bought nismo headers to match my nismo catback so if that doesnt fix the problem im going to take it in and have a shop fix it. And about those spacers, i didnt get any with my nismo exhaust.
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is it coming from like right under the floor board where your feet or the passengers feet would be? Their are heat shields right above the stock cats that began making a very loud rattle when I installed my testpipes. If it is coming from that area I bet that is what it is.
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Originally Posted by 9kFever
is it coming from like right under the floor board where your feet or the passengers feet would be? Their are heat shields right above the stock cats that began making a very loud rattle when I installed my testpipes. If it is coming from that area I bet that is what it is.
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no this is right behind the seats.
I will attempt to describe where its rubbing.
Where the Y-pipe connects to the single pipe (that connects back to the nismo muffler)
It is rubbing on the black support or whatever it is that the exhaust goes over right where the Y-pipe and single pipe connect.
It is like and 1/8th of an inch away and bangs against that piece. I believe that washers would work but im just going to do that when i recieve my headers this week.
I will attempt to describe where its rubbing.
Where the Y-pipe connects to the single pipe (that connects back to the nismo muffler)
It is rubbing on the black support or whatever it is that the exhaust goes over right where the Y-pipe and single pipe connect.
It is like and 1/8th of an inch away and bangs against that piece. I believe that washers would work but im just going to do that when i recieve my headers this week.
#19
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Originally Posted by 3FIFTYZEE
no this is right behind the seats.
I will attempt to describe where its rubbing.
Where the Y-pipe connects to the single pipe (that connects back to the nismo muffler)
It is rubbing on the black support or whatever it is that the exhaust goes over right where the Y-pipe and single pipe connect.
It is like and 1/8th of an inch away and bangs against that piece. I believe that washers would work but im just going to do that when i recieve my headers this week.
I will attempt to describe where its rubbing.
Where the Y-pipe connects to the single pipe (that connects back to the nismo muffler)
It is rubbing on the black support or whatever it is that the exhaust goes over right where the Y-pipe and single pipe connect.
It is like and 1/8th of an inch away and bangs against that piece. I believe that washers would work but im just going to do that when i recieve my headers this week.
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