Who else has the full exhaust set-up
Just installed the following

Stillen Y-pipe, B-pipe, rear section and Intake
Random tech cat

Question>>>

Is it supposed to be that loud. The problem is between 2000 and 3000 rpm. Above that its actully quieter. Did I do something wrong. Didn't think it made that much power until I drove my woman's Sentra. Before I knew her Sentra was slow. Now it doesnt seem like it goes at all.

Is there a quieter solution that has the same or about the same power. BTW it looks good and sound mean.


__________________
95 Maxima SE (All mods done myself)
Check out my website @ http://www.maximacar.com
Performance Mods
Stillen Intake, Y-Pipe, B-Pipe, Rear Section, FSTB, RSB and Camber Plates
GC Coil Overs
Fiber Images Carbon Fiber Hood
Stereo Mods:
Concept, Sony, Orion, Eclipse and lots of Dynamat Xtreme

 

Try putting back just the stock muffler, it should quiet things down and you won't really lose any power.

 

differnce in power between a stock muffler and performance is only said to amout to 2 hp

 

I think I will try that. However, It seems a damn shame to not use that muffler. Anyway, I will try that and let everyone know if that helps.

BTW does anyone know if other mufflers are quieter??? I hear that the 2001 muffler on the 20th Anniversary or what it the SE had a dual tune muffler. Will that fit or better yet. Will one of the Aftermarket people copy it but with better materials. (Yes I mean look better)

__________________
95 Maxima SE (All mods done myself)
Check out my website @ http://www.maximacar.com
Performance Mods
Stillen Intake, Y-Pipe, B-Pipe, Rear Section, FSTB, RSB and Camber Plates
GC Coil Overs
Fiber Images Carbon Fiber Hood
Stereo Mods:
Concept, Sony, Orion, Eclipse and lots of Dynamat Xtreme

 

my god!!! you must sound like a monster truck coming down the road with all that Stillen exhaust equipment in

 

my friend just got a high flow cat, the noise inside the car reduced tremendously! ^_^ might want to give that a try??? if you have a high hp maxima hehe... keep the muffler...better flow of air...u need to loose that back pressure =O

 

One thing that I noticed with my Greddy Catback including B pipe and Cattman Y Pipe, is that there is a loud drone at cruising rpms. Best way to fix that, get a High Flow Cat.

I bought an RT cat which goes for 180 new. You can buy a Carsound for around 100 from what I have heard.

 

hey...i have all that too, and i still get a loud drone...any suggestions??? Maybe some sound deadening stuff in the trunk???

 

Its just something to live with. If you want quiet go stock. If you want power, expect noise. You have the drone due to the RT cat most likely. Swap in your stock cat and see what that does.

Kirk

 

Sorry the RT Cat took AWAY the drone. The Stock cat is too restrictive, and makes it louder. You will have to sacrafice the catback for the stock one, and by all means, DO NOT get rid of the RT Cat. you'll see more gains from the RT cat than the catback. You won't notice it on the street, or feel the difference, but it is there.

If you want the stock sound, or just want it quieter, go back to the stock catback.

 

You sure its the cat that decreases the drone?

Oh...and to the thread starter ~ do you have any kind of a resonator?

Kirk

 

[QUOTE]Originally posted by riceburner
[B] Who else has the full exhaust set-up
Just installed the following

Stillen Y-pipe, B-pipe, rear section and Intake
Random tech cat

Question>>>

Is it supposed to be that loud. The problem is between 2000 and 3000 rpm. Above that its actully quieter. Did I do something wrong. Didn't think it made that much power until I drove my woman's Sentra. Before I knew her Sentra was slow. Now it doesnt seem like it goes at all.

Is there a quieter solution that has the same or about the same power. BTW it looks good and sound mean.

I use to have the same exaust setup as you and it was LOUD, then I put headers on and it got even louder!

For those who say the RT cat helps the sound, it made no difference in Noise on my max. It may have made it a tad louder at 5000+ RPM.

 

damn your car is nice. i like your center console, real *****in

 

another thought, if u like the look of the muffler you have, you can go back to a stock b pipe with the resenator(spelling)?.or.. what i was considering origionally was buying a cheap muffler from another car that i could put in my b-pipe where the old resanator use to be.

 

Go to your exhaust shop and ask for a "turbo tube" to be put in in place of your resonator...or if you dont have one, ask that it be put in. Will quiet your exhaust down a little and keep it high flowing.

Kirk

 

You would be amazed at what a difference going back to the stock muffler makes sound wise. Things can still sound mean but not overwhelming.

Hey Kirk, I aint seen ya around for a while... get that eclipse yet? How is that going?

SuDZ

 

Thanks for all the feed back.

Here is what I got from all the info.

Yes it should be loud. The real noise issue I have is the "Droning" around 2-3k from 3-5K it is acutally quieter> The problem exists because I have the auto and in normal D mode average RPM hover between 2-3 RPM.

I do have the RT cat installed so adding the Cat is not an option. There is too many differing opinions about whether or not the RT Cat has any real affect on noise.

I see four viable solutions

1. Deal with it, it's loud because it's faster.

2. Add a resonator in the B-Pipe. The factory one had it and the one from Courtesy Nissan has it although I have no info about it. I will not put back the factory one due to the kinks at the bends. Reduction on HP should be minimal as long as it is done well.

3. Put the factory muffler back on. I should only lose about 2HP (It seems that if that is all the HP the muffler has then that sucks for dollar versus HP.) It should be quieter.

4. Get another muffler from another performance company. The problem with this is that they too may also be loud. No one has commented about the relative loudness of different mufflers.

What do you think?

 

The more I think about it, I am going to try this.

I just happen to be able to test for road noise like the tests you see in Road in Track (you know like the dBA noise levels) My company does these sort of test for our product Dynamat (you know the stuff you add to make your car quieter and stereo sound better) I think I will measure the noise levels in different situations and measure the difference. Here is what I plan to do.

1. Measure what I have now. (y-pipe, rt cat, stillen b-pipe & stillen rear section)
2. Measure by reinstalling the factory muffler. (rear section only.)
3. Look into measuring with a b-pipe resonator installed. I need a little more research on this subject.

What I would really like to do is to combine this with some Dyno comparisons. I live in the Cincinnati Ohio area. Does anyone know of a dyno in this area???? I need your help.

I will post the results on the forum as well as on my site http://www.maximacar.com

 

sounds good. Op # 1 is it for sure. That B-pipe makes your exhaust REAL loud. Try that first and good luck.

 

It seems to me that certain people don't understand that in order to gain power you have to lose something else. I install cattman y-pipe, rt cat, and greddy exhaust at the same time. I love that sound. It made me turn my sound system down just to hear it better. The one problem with the stillen b-pipe is that it doesn't have a resenator. The greddy has one, and I pretty sure it's not as loud. You have to chose between family sedan which is bone stock, or a performance car with mods that will stand out. Basicly if you want your car to be quiet, soft, and comfy, than stay stock.

 

Im still in the process of trying to buy it. I will hopefully have a mechanic look it over this saturday and if all goes well and I can talk my dad into not being over-protective, I should buy it in a week or 2 after that. Thanks for asking, I've been avoiding the 4th gen forum for personal reasons and disputes with moderators. If you want to know what about PM me and I'll tell you.

Kirk

 

Good luck with that Kirk!

 

Thanks Nam, I'll be sure to give all you CO guys a ride when I get it

Kirk

 

Keep the muffler just put your stock b pipe back on... you wont lose any HP really.. Unless you are boosting. It will sound quite too.

 

Incorrect. You WILL lose power if you put your stock b pipe back on. There is a major crimp in it about 1/2 way between the cat and the muffler. This crimp decreases the already small 2.25" pipe down to about 2". You will notice a loss in you upper powerband if you go back to stock. I dont think the muffler will make you lose more than a few HP, 2-4. There is a trade off: If you want power you will have to deal with noise. DO NOT put your stock b pipe back in.

Kirk

 

Get a tunable muffler ... u kno the one with the silencers on the tip. I've never really heard the sound difference between the silencer on and off but some people say it makes alot of difference. That way u can stay quiet when cruisin and go all out when u smoke them hondas. Maybe u should check that out.

 

whats a resonator? whats its purpose?

 

i hate when people bring up old threads

i was like kirk? kc?

resanantor is basically like a pre-muffler. it helps quiet down the exhaust note before it reaches the actual muffler.

in theory it robs hp but not much.

 

:-D Im good, but a little slow since selling my maxi.

A resonator is pretty much what Nismo2020 said. The stock one is a tube looking piece, aprox. 14" long and 3" in diamiter. It sits about 6-8" behind the cat. It is there to disrupt the flow of the exhaust in a way that makes it quieter. It does rob a few HP, but nothing major. Taking it out will cause a little noise increase under hard throttle or WOT.

Kirk

 

What you are facing is drone. Try mounting a resonator between the cat and the muffler if you don't already have one. It'll help quite a bit. Maybe enough to allow you to keep the muffler. BTW, all exhausts sound loud right after you get them, and seem too quite long afterwards. I say give it a little while, say a week or two, and while doing so, shop for a resonator. If after two weeks it's still too much, try putting the stock muffler back on. If that's too quiet, try mounting in a resonator.

 

Yea I'd agree with everything Sin said. The general opinion seems to be that the resonator will get rid of (or at least reduce) the drone that many people seem to experience. Also I heard that after a while carbon builds up on the inside of the exhaust so it's not as loud.

 

It is better than the same old issues coming up everyday in new ones.

SuDZ

 

Very true.

Dont you find it funny when people answer the original question rather than the new one though? I do

Kirk

 

I just quickly read the whole post and didn't even realize how old it was until some pointed it out...

 

Its all good mate, no worries.

Kirk