[2 The X]

I was wondering if anyone knew what the diameter of the stock exhaust was on our rigs? I was interested in putting a Flowmaster 40 series on my truck and was considering keeping the stock pipes. I also noticed that there is a slight bulge on the exhaust right before the tailpipe. . .is that some sort of resonator that keeps the exhaust tone "down".

Thanks for any input.

Devandra

 

[Glucola]

I think it's a 2.5" pipe. I know that that is the max diameter that you can go up to.

 

[2 The X]

Dan,

Thanks for the input on the exhaust diameter. I hope to get a flowmaster up and running soon. Had one on my '02 and am hoping to gain some more benefits w/ one on my '06.

Devandra

 

[s4iscool]

i noticed that bulge as well, the only thing i can think of is the same, small silencer...not sure how much noise that thing supresses, but its probably not a lot, but something that late in the exhaust piping is usually an afterthought to get it under a db goal.

if you go with a new exhaust, hack that off first and let us know if there is a diff

 

[JasonK06X]

That buldge is a resonator. Its used to tune the sound to be more pleasent sounding to the consumer.
Not sure how much it changes the tone on the Xterra, but a friend of mine left his off when he had a new muffler put on his old Ford Escort. It sounded like crap, so he took it back and had a resonator put back on it.

 

[usmc xterra]

My uncle used to own a Muffler shop, (2) and inventor of the "Test Tube" Anyhow. About 97% of people that said leave of resonator, to save $$ came back and paid more to have it put back on.

Having run My X without one, I also paid to put it back on.

MC

 

[s4iscool]

My uncle used to own a Muffler shop, (2) and inventor of the "Test Tube" Anyhow. About 97% of people that said leave of resonator, to save $$ came back and paid more to have it put back on.

Having run My X without one, I also paid to put it back on.

MC

ive had luck with taking them off. on the C32 I took TWO resonators/silencers that are similar to the Xterras, but a bit more diameter in the bulge...love the sound and many others have since done it too. Was it significatly louder on the xterra? the c32 resonators were before the muffler, so they were doing a lot to stop the noise, but I cant see the xterra one having that much noise supression when its basically the tip of the exhaust.

 

[usmc xterra]

Take it off and find out. Everyone hears different. Nissan spent a ton of money making it quiet, notice the balancer to thwart vibration? Sweet.

When I went through my exhaust escapade, I called my uncle who thought I was crazy for dicking with the factory exhaust. So did the exhaust shop I went to. Mine is back on and won't be messed with again, unless I go Gibson. end of my story. MC

 

[twistedmike]

flowmaster

man, i love the way those flowmaster mufflers sound. there is a video on youtube of a frontier with flowmaster on it and it sounded amazing. this is my first post by the way. glad to be a part of the xterra community.

 

[xterra4me]

The only thing I don't like about the stock exhaust is the Y-pipe just before the muffler. Instead of building a good Y-pipe, it looks like they just crushed each pipe flat and welded them together. It looks like a point to create a lot of back pressure. I have thought about having a Y-pipe made correctly and installed at a custom muffler shop.

 

[RogueClimber]

Welcome aboard Twisted Mike. NA not LA huh?

 

[xterra4me]

A guy at a tire shop that does exhaust work as well, quoted me $85 dollars and about an hour to resolve that Y-pipe issue or put on a Flowmaster muffler for $275 that has dual inlet and eliminate the Y-pipe.

Anybody have a Flowmaster on their X?

 

[Old Navy]

Re: flowmaster

man, i love the way those flowmaster mufflers sound. there is a video on youtube of a frontier with flowmaster on it and it sounded amazing. this is my first post by the way. glad to be a part of the xterra community.

Here it is;
http://www.youtube.com/watch?v=WBI4m6ev5QQ

 

[usmc xterra]

I wish I had your searching skills Navy! Thanks a million. Boy now that sounds good! That is the same egine as we have? S0unds like a V8!
Crap! This may be in near future as a mod. MC

 

[S_e_X-Terra]

Hey MC?!?! What are you going to do when you have nothing else left to put in your truck? i know that sounds like it would be hard to accomplish, but it could happen! You are going to have to buy a new vehicle and start all over LOL. Good luck with that

 

[Catalyst]

just for a gibson POV, i have one, and i love it to death. At first i thought "wow that sounds realy ricey". then i drove on it for a while because i thought wat harm could it do. And now it sounds like a beast, basically the same as that flowmaster up there on youtube. I love it and i can definately feel the power change (probably around 15 hp at the wheels and much more low end torque) The Y pipe is done nicely too, and that is why i went with this gibson instead of sticking with the stock. Also it loooks pretty sweet coming out the back end. Of course before doing any serious off roading im going to have to cut back a little piping to make it come out in stock location so i dont bend it all up. Anyways id say go Gibson, i got mine at a reasonable 550 with install at the local shop. No point of just getting that flowmaster muffler.... it will just make it sound better while you could be spending your money on sound and performance with the gibson cat-back

 

[usmc xterra]

Can anyone answer the question as to why or the reasoning or how with the Gibson someone mentioned turning the muffler around backwards and then installing it to make it sound better. I asked 4 wheel Parts and they said it can't be done. So, I canceled my Order so I won't have to install it 2 times. They guy who said he did it never answered back.

Anyone?

MC

 

[Catalyst]

i also heard this and called down to my local shop. All i got in response was "do it if you want, but if your engine gets screwed its not our fault." I thought it over for a sec, then i drove it for a while. Believe me there is no reason for mounting it backwards now.... i just plain love it :cat:

 

[xterra4me]

An engineer or engineers designed that muffler, why would one turn one around backwards? 4 Wheels say it can't (or won't) because if something went wrong, they would get their arses sued off (again). Same reason most won't do a suspension and body lift at the same time. Some years back some jerk did both a body lift and suspension lift took it out the first time, went belly up and got killed. Of course it was 4Wheels fault so the lawyer said....