Im starting to think its actually the resonator.

I had a friend rev for me and was under the car I think with this particularmagnaflow muffler/ stock resonatorits a bad combination.

Saudi can you do the same on your car and see if the sound seems to be coming from your reso or the cats?

I know that exhaust sound travels and im not convinced. But its def the cats or the reso...

 

And coleA4can you also do the same test?

I think were onto something here......

Same sounds around the same RPM it might be that the reso will need to be switched. Because its restricted and then also the muffler restricts some. Im thinking its back prssure causing the noise from the combination of the exhaust setup.

 

Yea ill do it tomorow tell you where my noise is coming from but it cant be from my resonator because I dont have one. I wana do a magnaflow though, How did you reattach it to the hanger? do you have to weld that piece back on? I wish i could weld.

 

I still have that small rattle/buzz sound and I have an after market resinator. I think its in the cats.

 

im uploading a video of mine right now but you can only hear my rattle when im in gear so you cant tell by this video it sounds good tho for just the stock muffler

 

http://files.filefront.com/A4+exhaus.../fileinfo.html

You cant hear the rattle there but i hear it when i drive it. It annoys me a little.

 

coleA4

I do hear it in the video and it sounds just like mine and it sounds like killer bees inbetween 2500- 3k RPM range while driving.

So you guys also have the aftermarket cats?

I mean high flow is good for performance but im starting to think its a bad trade-off for the sound.

I think its confirmed high-flow aftermarket cats will let the bees loose on your ride.

 

ok i did the test yesterday, and it sounded just like coles car. although i heard 2 things theres was a ratling from the cats, but a small buzz from the resonator, but again i have a loose heat shield right above the resonator that may have been tapping on the resonator. so im gonna agree magnaflow cats start off good (really mad ethe car quite when i first put them on) but get an annoying buzzing later.

 

Screw it. Weld 3 inch pipes straight from the minifold all the way back. No more buzzing.

 

dam you think its the cats? i was hoping it was just my stock muffler.