No, it replaces the discs. So the side pipes are still used. I guess you can take the side pipes off if ya wanted.

 

Ah, ok...so the plate is still thin enough to allow use of the stock bolts, like those "spacer plates" we saw in some of the media cars.

Do you know when FRPP plans to have these available? Has QTP finalized the design already?

 

Will the diameter of the hole be variable (think old camera shutter), or is it just one size? (Butterfly is either fully open or fully closed)

I'm hoping for a variable opening.

 

sounds like it might just be valving the sidepipe, but I'm interested to see more details.

 

I am curious to know, have you tested them on extended track runs? How will they hold up to the extended heat soak?

 

So, will one button press operate the pair and how much do they weigh?

 

Here is a 2012 Boss 302 Mustang with the factory sound discs removed. These are very easy to remove and just as Ford claims, you can do it when you get to the track and then put them back in for the ride home. Definitely awakens the car sound wise. Even kind of burbles when you left off the throttle. No drone observed.

Will try to take one with the car accelerating soon.


http://www.youtube.com/watch?v=CMug2zKngwE

 

Very nice. Thanks for posting that.

 

Sounds good, but I still may buy new axle backs to make it sound even better

 

Sounds good...Give that sucker some REVS!

 

I had Roush axle back exhaust on my 2011 GT/CS and thought it sounded great. I would say that the sound of the Boss exhaust without the discs is very similar. So much so, I am not sure another exhaust system would be needed unless you really like it loud.

 

Sounds great to me! Do you really think you'll need the discs in on the street? Did you just put it on jack stands to get them out or do you have a lift?

 

After hearing that there is no way I'll use the discs on the street. It by no means sounds obnoxiously loud. Correct me if I'm wrong..it's not the same hearing it in a video compared to in person.

The reason I made the axle back comment was that 2006stiguy has also said this...
"I only could hear it just slightly in town when she revved it a little at a stop light. Anyway as you all know I was the first one to remove the silencing discs in the side eaxhaust and LOVE how it sounds next to, and in the car. Problem is there is no rumble around the car at lower in town revs(under 5500)"

So depending on how true this actually is(and i think everyones personal preferences are a little different in this respect)..I may end up just changing the axle backs

 

Driving normal and at lower revs it is in no way too loud for the street...in fact inside the car with the windows up it's how it should sound from the factory. I want to hear it when the car pulls away in fron with a nice roar!!!

 

Depending on how large your gut is, you can remove the discs without jacking up the car. That is how we did it yesterday. It is probably easier if you put it on a jack, but isn't necessary. I don't think you need the disc in when driving on the street. It has a great sound when accelerating, but is not overly loud.

 

Yea we had it on the lift this morning and pulled them while bolting on the trans scoop. Lowered it down and started it and they're not going back in

 

SO,,,,,You have your BOSS, please don't abandon us, feed us everything we need to know--->

 

Lets see a picture of the Trans scoop installed!

 

Congrats Gary!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:cheers :

 

Thanks. I bet it gets even more exciting when I actually drive it Rain is coming down with hail now Thank goodness it's still above freezing!