NISMO Exhaust - How to reduce loudness
06-11-2004, 07:54 AM
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NISMO Exhaust - How to reduce loudness
I installed a Nismo cat-back exhaust along with some Crawford high-flow cats on my Infiniti FX35. The resulting exhaust not was way too loud for this type of car. My wife immediately vetoed the change. I think the were the reason it was too loud.
No one has shown interest in buying the exhaust from me, so I'm thinking about giving it a second try with some modifications. Anyone have experience with custom exhausts? What should I do? I think the midpipe has a straight-through resonator. So the only option is to change this somehow. There is not enough room for a second resonator anywhere.
My other throught was to use the stock muffler, especially since that way I won't have to extend the Nismo's exhause tips. But this would require some modification to that piece too, in which case I'd have no way to back out.
No one has shown interest in buying the exhaust from me, so I'm thinking about giving it a second try with some modifications. Anyone have experience with custom exhausts? What should I do? I think the midpipe has a straight-through resonator. So the only option is to change this somehow. There is not enough room for a second resonator anywhere.
My other throught was to use the stock muffler, especially since that way I won't have to extend the Nismo's exhause tips. But this would require some modification to that piece too, in which case I'd have no way to back out.
06-11-2004, 09:14 AM
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I would just cut out the midpipe and replace it would a normal muffler (ie Magnaflow 1in-1out 5"x7" or something similar) - it'll run you around 60-70 for the muffler and probably around 50 for the install (cut out old, weld in new)
06-11-2004, 09:40 AM
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Originally posted by ChuckGZ
damn. when were you trying to sell it? i just bought a nismo exhaust.
damn. when were you trying to sell it? i just bought a nismo exhaust.
06-11-2004, 09:44 AM
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Originally posted by bwzabodyn
I would just cut out the midpipe and replace it would a normal muffler (ie Magnaflow 1in-1out 5"x7" or something similar) - it'll run you around 60-70 for the muffler and probably around 50 for the install (cut out old, weld in new)
I would just cut out the midpipe and replace it would a normal muffler (ie Magnaflow 1in-1out 5"x7" or something similar) - it'll run you around 60-70 for the muffler and probably around 50 for the install (cut out old, weld in new)
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06-11-2004, 07:07 PM
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Originally posted by EL Diablo
I have the NISMO exhaust and RT cats.
My Z is so Damn loud. Just the way I like it. BadAs$
IMO: Keep the set up
I have the NISMO exhaust and RT cats.
My Z is so Damn loud. Just the way I like it. BadAs$
IMO: Keep the set up
I've been contemplating getting the RT cats but I've been seeing posts with people having problems with the RT cats not lasting...
Any problems with yours? How long have you had them? I've got the NISMO catback exhaust and Borla headers now-- how much louder do the cats make an exhaust?
06-11-2004, 07:12 PM
#15
Originally posted by NISMO_GUY2003
Hey El Diablo,
I've been contemplating getting the RT cats but I've been seeing posts with people having problems with the RT cats not lasting...
Any problems with yours? How long have you had them? I've got the NISMO catback exhaust and Borla headers now-- how much louder do the cats make an exhaust?
Hey El Diablo,
I've been contemplating getting the RT cats but I've been seeing posts with people having problems with the RT cats not lasting...
Any problems with yours? How long have you had them? I've got the NISMO catback exhaust and Borla headers now-- how much louder do the cats make an exhaust?
06-11-2004, 08:06 PM
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Originally posted by ZU L8R
I know this wasn't directed @ me but I just had to let you know my experience. My RT cats just collapsed, they lasted a whole 6 days. Save your $$ and go with another company if you really want cats.
I know this wasn't directed @ me but I just had to let you know my experience. My RT cats just collapsed, they lasted a whole 6 days. Save your $$ and go with another company if you really want cats.
Thanks for the advice.
Don't think I'll go with RT based on the recent posts I've seen.
Six days is outrageous!! Hope you got your money back...
06-12-2004, 01:59 PM
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So how do you know when your CATs collapse? Does palladium come shooting out your exhaust!?
You should get your money back, *and* sell the metals for around $100 too. You credit card company should stand up for you.
You should get your money back, *and* sell the metals for around $100 too. You credit card company should stand up for you.
06-12-2004, 05:52 PM
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I don't get it, I've never seen or heard an exhaust that is "loud" on a 350z. Compared to a mustang with headers, no cats, and flowmasters... any z would sound quite. The Nismo being a single pipe, I don't understand how it could be so loud. All of them are pretty tame from what I've heard. I agree with the other guys though, the stock cats will quite it back down. But then again, what's the point....???? Sounds to me like you should have left it alone and spent the money on other mods.
06-12-2004, 05:54 PM
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I have the RT's for over 3000 miles now and no problems.
I know a few guys with alot more than that on them and no problems. I know a few RT's had issues but this does not mean all will. If mine should fail because of a defect I'll buy another brand of cats. For now I am happy with the RT's
The combo of NISMO exahust and Rt's is a loud one.
I know a few guys with alot more than that on them and no problems. I know a few RT's had issues but this does not mean all will. If mine should fail because of a defect I'll buy another brand of cats. For now I am happy with the RT's
The combo of NISMO exahust and Rt's is a loud one.
06-12-2004, 06:17 PM
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I don't get it, I've never seen or heard an exhaust that is "loud" on a 350z. Compared to a mustang with headers, no cats, and flowmasters... any z would sound quite. The Nismo being a single pipe, I don't understand how it could be so loud. All of them are pretty tame from what I've heard. I agree with the other guys though, the stock cats will quite it back down. But then again, what's the point....???? Sounds to me like you should have left it alone and spent the money on other mods.