I think thats the nature of the beast... Im not sure much will change the sound as far as any other performance mods. The way it sounds is the way it is going to be... it might break in a little bit over time but it might get louder. I dont have the JBA evol so i cant comment on that but I have had both magnaflow and flowmaster mufflers on my previous vehicle and after a break in period it seemed a little louder. As far as using dynamat or any other sound preventing product it would be trial and error trying to dial it in to try and sound proof the cab. Id say your only real fix is if you dont like the way it sounds is change the muffler.

 

A member reduced drone by inserting a Vibrant resonator
in the tail pipe. I don't know how much it would reduce
the overall volume.

 

Cut the exhaust pipe just after the last hanger and it will cut drone like nothing else you can do.I have did it as well as several others here.PM suddenurge and Jaho and they will confirm this.No one has yet to do this and not be happy with it.The length of the pipe changes every thing.

 

When im tired of listning to my jba exhaust I just crank up the music lol. Solves the prob very quickly

 

From what I've read here on TitanTalk, I did't think the JBA was as loud as some of the other systems. Is this true? I haven't heard of others saying it was too loud. I was considering getting the JBA Evol system, I may have to re-think that.

 

I have had my JBA Evol for a week now and love it. It isn't that loud, as far as performance exhausts go, but there is a drone. Changing the length of pipe, as previously posted, should help. I am leaving mine as is, I like my music loud so it all works out for me in the end anyway

PS - the JBA hauls A$$!!!! Punching it makes my drone problem go away

 

Thanks for the responses! Never heard of a Vibrant resonator.

Yes, all the research I did also stated the JBA to be the mildest sound with the best performance. Exactly what i was looking for. I do need to get it hot and retorqe the clamps if that matters.

"Cut the exhaust pipe just after the last hanger"
How does dumping the exh under bed help? Seems as if that may create more noise and also allow fumes to gather under truck while stopped.
Also, kinda scarry to start cutting on something i just spent money on.

 

JBA hauls A$$!!!! Punching it makes my drone problem go away

ha-ha I did notice that answer works too!
:gunz:

 

Thanks for the responses! Never heard of a Vibrant resonator.

Yes, all the research I did also stated the JBA to be the mildest sound with the best performance. Exactly what i was looking for. I do need to get it hot and retorqe the clamps if that matters.

"Cut the exhaust pipe just after the last hanger"
How does dumping the exh under bed help? Seems as if that may create more noise and also allow fumes to gather under truck while stopped.
Also, kinda scarry to start cutting on something i just spent money on.

The overall length of the exhaust system affects the resonance frequency. I'm not a puppy anymore either, and after installing the 18" Mag, something had to be done about the drone. I cut the tailpipe off about 1.5" after the last hanger, and the drone was reduced by about 60%. I'm very happy with the results. The overall sound got a touch deeper in tone but not louder.

I've done a few sound clips before and after in the cab, but it's hard to hear the difference in the recordings compared to live in person. I've heard in cab recordings on the JBA, and I immediately noticed the high drone level in the recording.

Many times in general forum postings you read about how great a new mod is, but rarely see any negative comments on their new investment. Case in point, my new S&B CAI startled the hell out of me after I romped on the throttle for the first time...lol. Before that I read 500 postings on it, and nobody said it's loud enough to rattle any loose change in the console.

Bottomline, it won't get any more tolerable, unless you get the saw out and change the exhaust length or add a resonator. Adding a resonator will quiet down the overall sound level, a hacksaw won't, good luck!

 

Simple addition of an "H"pipe 18-24" upstream from the mufflers will help back the resonance off a few decibels.

:upsidedow

 

Thanks Sudden Urge... "The overall sound got a touch deeper in tone but not louder." Thats is exactly what i am looking for!

One last question.. Did you cut the inch and a half off and then re-attach the tip or just chop it off? Trust me, I will rapidly chunk the tip for the lack of loosing my crowns.

Thanks guys!

 

had one on my gmc,sounded great until towing then it became very obnoxious i guess its the nature of the beast.good luck

 

Thanks Sudden Urge... "The overall sound got a touch deeper in tone but not louder." Thats is exactly what i am looking for!

One last question.. Did you cut the inch and a half off and then re-attach the tip or just chop it off? Trust me, I will rapidly chunk the tip for the lack of loosing my crowns.

Thanks guys!

I cut a total of 12" off, 1.5" after the last factory hanger. I'm running with no tip, I like the stealth look. People hear it and don't see the outlet.

 

I got the JBA it is not that loud compared to the Banks. It does seem louder to me in the cold though.

 

Sudden -It can't hurt to try it; I would have to cut pipe anyway to add an additional resonator.

I-force - I have single exhaust, H pipe wont work if its works like a cross over pipe. And, why are you reading a Titan site with a Tundra nick? haha j/k..

And yes, i would agree Banks is much louder. I saw that settup on another Titan before I bought the JBA. Banks was higher pitched too IMO.

Thanks for the ideas everyone. I will try trimming some length off the tail pipe in the next couple days.

Thanks again,
Mike

 

If you can't stand it and want to sell it let me know. I would like first dibbs.

 

Simple addition of an "H"pipe 18-24" upstream from the mufflers will help back the resonance off a few decibels.

:upsidedow

The JBA is a single exhaust with a Y-pipe. No place to install a H-pipe.

 

I have the JBA and it sure doesn't drone much IMO.

 

I have the JBA and it sure doesn't drone much IMO.

I'd wish somebody would make up their mind...little drone or mucho drone? :upsidedow

I was thinking about the JBA system but now you guys got me re-thinking....I wouldn't care if it gets loud on the outside, but too much drone will drive me nuts!

 

I'd wish somebody would make up their mind...little drone or mucho drone?

I've noticed moderate drone from 1600-1700 RPM's. It is tolerable to me, but everyone's opinion will differ.

You can always do the mods listed above if you're not satisfied.

 

Sudden -It can't hurt to try it; I would have to cut pipe anyway to add an additional resonator.

I-force - I have single exhaust, H pipe wont work if its works like a cross over pipe. And, why are you reading a Titan site with a Tundra nick? haha j/k..

And yes, i would agree Banks is much louder. I saw that settup on another Titan before I bought the JBA. Banks was higher pitched too IMO.

Thanks for the ideas everyone. I will try trimming some length off the tail pipe in the next couple days.

Thanks again,
Mike

That's why I tried it was because I was going to try a resonator anyway.The resonator will do very very little for the drone,only the volume.Trust me.

 

This exhaust stuff is tough. I guess I'm going to keep my Zoomers and increase the size of the ypipe to 2.25", put a 3/4" H pipe between the bpipes and call it a day. I should have the performance of the JBA without much drone. I have had people offer to buy my Zoomers after they hear it in person and now I know why. It is pricey but I will have my truck for a long time so worth it to me.

 

Now Papa's thinking . . . .:gunz:

This exhaust stuff is tough. I guess I'm going to keep my Zoomers and increase the size of the ypipe to 2.25", put a 3/4" H pipe between the bpipes and call it a day. I should have the performance of the JBA without much drone. I have had people offer to buy my Zoomers after they hear it in person and now I know why. It is pricey but I will have my truck for a long time so worth it to me.

 

I have an 07 Tundra and one of my Bud's drives a Titan,he doesn't have PC access and is needing help modding his truck so it will run closer to my Tundra.
So I told him I would fish around and see what others says about certain available mods.

I-force - I have single exhaust, H pipe wont work if its works like a cross over pipe. And, why are you reading a Titan site with a Tundra nick? haha j/k..Thanks again,
Mike

 

AMAZING!! I broke out the saws-all and cut the tail pipe about 1.5 to 2 inches behind last hanger and i'll be damned if it didn't work. I didnt measure, just eye balled the distance. The drone is definetely cut in at least half. I have only tested it for about 15 miles, but it has made an imediate noticable difference for the better. Drone is reduced by 50 - 60%. Thanks all; I even called JBA and they recommened you at Titan Talk would have the best feed back as far as adjusting or tuning. I will report back to John at JBA and let him know that the tail pipe reduction indeed cut the drone. And that ya'll accumulatively R&D'd it.
Other than the drone,(which is now fixed for the most part) the JBA Evol system is awesome!
:cheers:
Thanks again everyone!

 

AMAZING!! I broke out the saws-all and cut the tail pipe about 1.5 to 2 inches behind last hanger and i'll be damned if it didn't work. I didnt measure, just eye balled the distance. The drone is definetely cut in at least half. I have only tested it for about 15 miles, but it has made an imediate noticable difference for the better. Drone is reduced by 50 - 60%. Thanks all; I even called JBA and they recommened you at Titan Talk would have the best feed back as far as adjusting or tuning. I will report back to John at JBA and let him know that the tail pipe reduction indeed cut the drone. And that ya'll accumulatively R&D'd it.
Other than the drone,(which is now fixed for the most part) the JBA Evol system is awesome!
:cheers:
Thanks again everyone!

Glad it worked out!