I'm still running the stock exhaust on my supercharged F-150. I have a set of dynatech long tubes and had plans of installing a 3" system with a single large muffler. I'm changing my decision to go with true duals with an x-pipe using (2) 2.5" mufflers and piping. I don't want loud pipes for low rpm/low load. My goal is to have a free flowing exhaust at WOT. I'm looking at using these mufflers, Magnaflow 11246.

What are the odds I would be hearing any droning with dual tailpipes behind the rear tires using these mufflers? I will be using dynatech's hi-flow cats. Any alternatives would be appreciated, if this setup would be on the loud side.

 

I would go with the 22" mufflers. Lt's plus hi flows with true duals are gonna be pretty loud.

 

Realize only one bank is going through one of these mufflers. I was hoping to stay with a 4x9, but if I have to go to the 5x8, so be it. I'd rather error on the side of being too quiet than too loud. Anyone else has any opinions, insights, observations?

 

It's still loud though, true duals are louder and drone more than a si/do

 

Okay, that's good to know. I had a si/do on my old bronco and the drone drove me to a new system.

 

That will be a nice system.

 

I'll second that 22" idea.

 

Seems only the 5x11 comes in a 22" body, so I think I'll go with the 5x8 with the 24" body. Thanks for the input.

 

Fixin' to order parts. Any other opinions?

 

What's the part number of the mufflers you have in mind?

 

Magnaflow 12276

 

Those will be fine. I'm glad you aren't using the mufflers that you had linked at first.

 

i just went with a straight y-pipe on my '10...nice rumble and a growl when giving it throttle