This is sedan specific as the coupes have diff mufflers.

Why did you change and did it work? I'd like to calm the drone down on my Borla. I think it's the muffler as the drone is coming from the rear. Although I'd like to add an X pipe to the mix.

 

I guess "no" is the word of the day. haha

 

Wish i could help you out, I was curious to see the answer, too. Drone is a drag.

 

I added an HKS muffler for a short time. I absolutely loved the sound EXCEPT for the drone at 2500 to 3000 RPM. Of course, that the range I cruise at 90% of the time. So everytime I'd depress the accelerator such as to pass someone or to go up a slight incline the drone drove me up the wall. And I understand that the HKS is one of the quieter aftermarket mufflers. So I sold it to another member here. who I understand is very happy with his purchase, and went back to stock. I wish there was an option for better sound with no drone.

 

I was hoping for some more responses to this thread too..I have a megan racing catback and y-pipe and I want to change the muffler as well for something more quiet and with less drone.
anyone tried something like this?
http://www.magnaflow.com/02product/s...e=main&id=7068

 

If you want more sound, but no drone, consider the 03/04 sedan muffler which has a smaller muffler cansister. I absolutely love my 03 sedan with 06 sedan midpipe. It's a bit louder than a stock 05/06 sedan, but doesn't have any of the annoying drone of the coupe middy, which I had for a short period of time.

 

Jeff-

IMO, I think you could get rid of bit of the drone by adding an X-pipe aft of the y-pipe muffler and then adding some more significant mufflers in place of the stock "bullet" mufflers. I'd also install OEM-style flex sections in the y-pipe. I think a lot of perceived drone comes from the NVH created by the lack of flex sections.

 

Dave. I'd like a X pipe for the scavenging and whatever noise cancelation it might offer. But IMHO all the drone is coming from the back end. I guess I'd have to have someone drive my car while I'm riding in another right next to it.

 

Drone is the engine tone resonating through the entire exhaust. I have not seen a G without drone...

 

Sure wish this wasn't moved here as I was referring to the sedan styled exhausts. Coupes are done diff.

 

my exhaust has almost 0 drone.

 

Klubbs, what you running again?

 

my custom exhaust is designed just like the stillen with 2.25 piping all the way. Pipes come out of the cats into an x-pipe, then go into two small glasspacks, and then go into magnaflow muffler with two ins and two outs. Muffler is a true dual muffler because resonated pipes inside cross maintaining two pipe design instead of becoming 1 pipe inside the muffler. I added the test pipes recently and have a bit of rasp but before the test pipes it sounded sick and did not have any significant drone at any rpm.

 

Resonated X or normal? What muffler did you end up with? And did you do this custom exhaust all at once or did you have a set up and changed pieces along the way? I ask because I'm trying to find out what is the cause of the drone for my borla. 1) No x pipe or 2) muffler.

 

the x-pipe is not resonated. Magnaflow muffler. I did it all at once without touching it for over 1.5 years. I would guess the muffler is the one that is causing the drone. Do u have a picture of how borla exhaust looks like?