Benefits of exhaust cut-out?
#1
Benefits of exhaust cut-out?
I posted a thread here about where to mount it: http://forums.maxima.org/5th-generat...-location.html
Here's my thoughts. Help me out if it would be pointless. My car's exhaust is stock. My wife likes it that way since its our daily driver. I was thinking a cutout either right after the Y pipe or after the resonator in the B pipe would help me out when I'm spraying at the track. I'm assuming my stock exhaust is hurting the 75 shot power potential. Would a cut out help me out in this scenario? Then the car would be quiet as can be when I'm not at the track and not spraying. Any thoughts?
Here's my thoughts. Help me out if it would be pointless. My car's exhaust is stock. My wife likes it that way since its our daily driver. I was thinking a cutout either right after the Y pipe or after the resonator in the B pipe would help me out when I'm spraying at the track. I'm assuming my stock exhaust is hurting the 75 shot power potential. Would a cut out help me out in this scenario? Then the car would be quiet as can be when I'm not at the track and not spraying. Any thoughts?
#6
And in my experience, the cutout is going to leak a tiny bit. I sometimes put Ultra Copper RTV around the plate, but that doesn't last too long before it starts leaking again. Also, without a cat and with a slightly leaking cutout, expect your car to sound crappy. But when it's open, expect it to sound pretty mean!
So your best bet to still have a quiet stock exhaust system that sounds exactly like stock, swap the cutout in and out when you need it. If it turns out that you and the wife don't mind the noise it makes with the cutout in place and closed, then leave it in. But mine has flanges on it so I can swap it out with the cat if I wanted to. But I always leave my cutout in place. I can care less what my car sounds like as long as it beats the car next to me.
Also, here is my 3.5 with the cutout open. VQ35 with headwork, cams, headers, and equal length mandrel bent Ypipe:
So your best bet to still have a quiet stock exhaust system that sounds exactly like stock, swap the cutout in and out when you need it. If it turns out that you and the wife don't mind the noise it makes with the cutout in place and closed, then leave it in. But mine has flanges on it so I can swap it out with the cat if I wanted to. But I always leave my cutout in place. I can care less what my car sounds like as long as it beats the car next to me.
Also, here is my 3.5 with the cutout open. VQ35 with headwork, cams, headers, and equal length mandrel bent Ypipe:
#7
Aaron92se...Sweet car! Sounds mean and is fast! Here's what I decided to do to please my wife and mother nature. My car doesn't have an o2 sensor behind the main cat, so I am going to have an exhaust shop cut off my resonator, move the cat back a little bit, and then put the cut-out where the cat was. Then I don't have to change out the cat every time I want to use the cut-out, and the deleted resonator will give my car a slightly better tone than stock.
#8
Aaron92se...Sweet car! Sounds mean and is fast! Here's what I decided to do to please my wife and mother nature. My car doesn't have an o2 sensor behind the main cat, so I am going to have an exhaust shop cut off my resonator, move the cat back a little bit, and then put the cut-out where the cat was. Then I don't have to change out the cat every time I want to use the cut-out, and the deleted resonator will give my car a slightly better tone than stock.
#10
I still may do what you did, since it would be a little cheaper. But, if I go with the other way, the cat will be able to sit in the area where the resonator is. Should be enough room there. Anyone with a 5th Gen confirm this?
#11
Just an update...I did the cut-out the way I was advised in the above posts. $26 for the cut-out from Summit and $20 to have the flanges welded on. Getting the old cat off was a pain because of the rusted bolts, but I'm happy with the results. Best $46 I ever spent on my exhaust! I'm sure this will improve my times at the dragstrip...New nitrous times coming soon.
#12
Sorry to hijack your thread. I'm new here and i dont know why i can't create a new topic.
Will a exhaust cut-out, just after the cat cause i've got a o2 sensor on it, will be benefic on a 3.0 with only a ypipe and a ram air intake or a 2.5" catback will be better?
Thanks
Will a exhaust cut-out, just after the cat cause i've got a o2 sensor on it, will be benefic on a 3.0 with only a ypipe and a ram air intake or a 2.5" catback will be better?
Thanks
#13
Sorry to hijack your thread. I'm new here and i dont know why i can't create a new topic.
Will a exhaust cut-out, just after the cat cause i've got a o2 sensor on it, will be benefic on a 3.0 with only a ypipe and a ram air intake or a 2.5" catback will be better?
Thanks
Will a exhaust cut-out, just after the cat cause i've got a o2 sensor on it, will be benefic on a 3.0 with only a ypipe and a ram air intake or a 2.5" catback will be better?
Thanks
#14
Sorry if you dont understand, i dont speak english very well.
Mainly my question was; witch exhaust setup will be the best with only bolt-on, no tune on a vq30de-k.
1.Exhaust cutout just after the cat or
2. a complete 2.5" catback. or
The gain will be noticeable over the stock exhaust?
Mainly my question was; witch exhaust setup will be the best with only bolt-on, no tune on a vq30de-k.
1.Exhaust cutout just after the cat or
2. a complete 2.5" catback. or
The gain will be noticeable over the stock exhaust?
Last edited by Jean Seb; 09-27-2009 at 03:41 PM.
#15
Sorry if you dont understand, i dont speak english very well.
Mainly my question was; witch exhaust setup will be the best with only bolt-on, no tune on a vq30de-k.
1.Exhaust cutout just after the cat or
2. a complete 2.5" catback. or
The gain will be noticeable over the stock exhaust?
Mainly my question was; witch exhaust setup will be the best with only bolt-on, no tune on a vq30de-k.
1.Exhaust cutout just after the cat or
2. a complete 2.5" catback. or
The gain will be noticeable over the stock exhaust?
#18
Hey would cutting off the muffler and running the pipe out to where it should be cause power loss, Iv heard it does and it doesnt so if anyone on here has experience with just cutting the muffler off please let me know, its a 2003 maxima SE. thanks
#19
It wont do anything but make the car louder.
#20
not true. it opens up top end quite a bit for a little bottom end sacrifice. if your racing and wanna get the best time, have your finger on the switch and click it open after you hit 3k that way you don't lose any power in any range.
I tucked my cut-out right up in that little space above the cross member. That way if i ever bottom out, it is protected. Placed the button right next to the steering wheel heater.
i did the cutout option for the same reason, to keep the woman happy and preserve the luxury aspect of the maxima.
I tucked my cut-out right up in that little space above the cross member. That way if i ever bottom out, it is protected. Placed the button right next to the steering wheel heater.
i did the cutout option for the same reason, to keep the woman happy and preserve the luxury aspect of the maxima.
Last edited by twentyeggs; 10-05-2011 at 04:20 PM.
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