Mustanghammer

I have a 2012 pony package with an automatic. I recently installed some MAC axle backs. While I like the way they sound at idle and and high RPMs they drone terribly between 2-3k.

So my question is, has anyone experimented with aftermarket resonators installed ahead of the mufflers in front of the axle? I am looking for a way to cut out allot of the drone.

My car doesn't have factory resonators and it does have a factory x-pipe.

Rando

I've done a lot of research on resonators but have yet to pull the trigger... too busy to do any mods. But I came to the conclusion that these are the best money can buy;
http://vibrantperformance.com/catalo...roducts_id=288

Planned on installing them just before the AB

CVH

Did you remove the factory resonators? If so - put them back in.

rriddle3

Yep, the car came from the factory with resonators and an h-pipe, not an x-pipe.

CVH

I'm sure the car comes from the factory with resonators and what "they" call a hybrid xpipe.
He stated he doesn't have resonators.

Siber Express

The wide part just after the Cats is the resonator, one on each side

XEDES

I've heard about people putting in J pipes to kill the drone. Maybe look into that.

Mustanghammer

Thanks for the responses. Got the car on the lift tonight and confirmed that yes it has factory resonators just after the cats. There is a merge that connects the left and right side of the exhaust. Not a classic H pipe and not quite an X pipe either. Actually it pretty much looks like the picture XEDES posted just dirtier.

There appears to be enough space to install 20" long round resonators ahead of the 90 degree bends in front of the axle. At this point I decided that this would have be a project for another day and I have put the stock mufflers back on.