Try building a new dongle.

The little "tail" on the stock exhaust is for the purpose of eliminating the drone.

I did a straight thru exhaust on my Miata and got a drone. I looked at the S exhaust and saw the dongle so I thought why not? We built one the S stock size and it helped but did not eliminate the drone.

The dongles are sized for the cubic capacity and flow of the exhaust. So we built a two piece unit with the top half fitting over the bottom half to give it the ability to slide so that we could adjust the length.

We set it, drove it, readjusted the length drove it, etc. until we found a size that didn't drone. It wasn't hard and only took about 4 tries if you don't count the time spent trying to find something to hold the dongle in place while you drove. There is back pressure you know.

The hardest part was to fasten the dongle in place. It came lose a couple of times. We ended up using a header tape - duct tape only melts. We figured that the exhaust pipe wouldn't heat up enough to melt the duct tape in the length of time needed to make a quick spin in the car, and it didn't the first time. But if you had to do it multiple times the heat quickly built up so that it wouldn't work.

We have since sold that car so I can't post pics but it looked almost like the stock exhaust. We just put it in a convenient place which is what I think Honda did.

 

wrap the pipes with the heat wrap.

 

Aftermarket singles with test pipes usually don't drone. Also, they are usually sold with silencers. I would buy an aftermarket exhaust instead of just swapping mufflers. It's not a civic.

 

The only way to eliminate drone on the S with an aftermarket exhaust is to install a test pipe. The drone is caused by a bottleneck in the system. This is technically illegal but I have had no problems so far. I had the Invidia cat back for like 3 weeks and that was enough lol. I placed an order with Invision and got hooked up with a good deal on my Invidia test pipe. The test pipe quiets the car down conciderably down low but in VTEC it is loud as a mother.

 

One guy on the Sacramento forum put a lot of dynamat in his cabin and was able to eliminate the drone. You may post in there and see if he can tell you some secrets.

 

Drone is not caused by a bottleneck, it is a resonance tone of the piping. You put a testpipe on and SOMETIMES it might move the drone tone out of the rpm range that is bothersome because you get more flow at any given rpm.

To the OP, unless you luck out and find the right resonator for your particular drone frequency, you are shooting in the dark...pipe diameter, pipe material, length of system, thickness of pipe, etc etc make each exhaust package different.


If you love the sound of your system, then the next step you have is to soundproof (damp) the drone amplitude (volume). You can do it at the pipe or around the cabin. I have invidia's, one of the droniest of exhausts, and my wife (drone senitive) is fine on long 6 hour drives because of all the soundproofing that I have done to my car.

I documented all the steps in these threads

https://www.s2ki.com/forums/index.php?showtopic=275932


Goodluck

 

that's who I was talking about.

 

wow thanks for the info, I just gotta see what I do. I thought it might be that i needed to get a s2000 resonoator to see if that made more of a difference than the one I put on, but ill see what I do.

 

i've spent a lot of time on my Evo's exhaust...it's a full 3'' turbo back, so it's much difficult to make quiet, considering how damn long the whole system is.

in the end it comes down to your mufflers, period. i have 30'' of combined louvered resonators on my catback, a 12'' resonator on my test pipe, but it wasn't till i got an 18'' muffler that my car quieted down.

find the biggest mufflers you can fit on the s2000 then call it a day...otherwise the only option is going back to stock. good luck.

 

Get a test pipe