So I got a good deal on an svrtech true dual exhaust. This exhaust runs from the headers back using test pipes to a nicely crafted x pipe. Into two aero turbine resonators. Then into dual aero turbine 2540 mufflers. All piping is 2.5 inches. It's a very beautifully constructed system and I noticed substantial gains after installing it, however due to the removal of cats and the fact that the aero turbine mufflers offer no muffling of the noise, it was a beastly loud system. Shook all the pannels in the car from drone and had quite a bit of rasp. Anywho I searched everywhere for a solutions and finally decided on welding extra resonators into the portion post o2 sensors just before the xpipe.

I'm extremely happy with the result. It cleaned the exhaust note up immensely. The resonators are about 1.5 feet long each and removed every nasty sounding hiss and ugly frequency that was present. Leaving behind a very exotic and tuned exhaust note that sounds absolutely incredible. The hissing that was present during off throttle in gear engine braking is gone as well.
In terms of volume I would say it lowered the volume by about 20-25%. comming from being race car loud it's still a million miles from quite but it doesn't cause a headache anymore nor does it shake interior pannels. A bit of sound proofing in the trunk should remedy the remaining small amount of drone but it's not nessecary. Couldn't be happier with this mod and would highly reccomend addng resonators as a fix for anyone unhappy with their raspy or ugly sounding exhaust.
Sorry for the lack of pics and sound clips but I will get at least pics added tommorow. Working on an iPhone at the moment and don't think it's possible. Anywho cheers all!

 

Yes would be more interesting with photos.

 

hmmm, i thought it sounded great from the start. still holds the bolt on record also. congrats sir, you are in a small crowd. hope you are happy with the results.

 

What bolt on record? And.where is the damn vids?

 

i am interested ... i am running 3" GTM exhuast and need to install resonators.

which brand !!

pics or ban

 

Can you post a picture of where you put them? I'm thinking of doing the same with my dual 3" but I can't seem to find any place they would fit. Maybe mine are a little different due to the larger pipe.

Mine probably isn't as loud as yours since I have a pair of turbos to quiet things down, but the highway drone is fairly obnoxious.