3.5 MBRP Single exit exhaust DRONEs

[Krazykorean]

I have had my 2013 Raptor for about a year and love it, it came with the MBRP exhaust which is no really annoying me, all I hear is drone. Other than that it's a great sounding exhaust when I am on it and at start up.

Has anyone else added another Resonator to the exhaust? I would like to keep it but lower the drone.

 

[Deleted member 12951]

Yes there is a resonator option for it. I’ve tried both. Like the sound without it

 

[Krazykorean]

Yes there is a resonator option for it. I’ve tried both. Like the sound without it

I looked at the exhaust and I see one there. What I meant to say has any added a second one

 

[Deleted member 12951]

I looked at the exhaust and I see one there. What I meant to say has any added a second one

Never seen anyone do that, not much room for a second one.

 

[dirtydeeds]

Add a j pipe.

 

[Chinmasterflex]

Add a j pipe.

+1 for this. I had done this to my mbrp turndown (resonated version) and saw significant improvement.
Took a couple tries to get the right length though.

 

[engine45]

+1 for this. I had done this to my mbrp turndown (resonated version) and saw significant improvement.
Took a couple tries to get the right length though.

What length did you finally go with ? And do you have a screw or scab ?

 

[Chinmasterflex]

Supercrew.
Pipe is 24"x3" from tip to center of where it meets with the mbrp. I read some guys using longer and had originally started with 29" and worked my way down. Works pretty well for about 65mph give or take.

 

[engine45]

Supercrew.
Pipe is 24"x3" from tip to center of where it meets with the mbrp. I read some guys using longer and had originally started with 29" and worked my way down. Works pretty well for about 65mph give or take.

did you have it made ? or did you purchase it somewhere ?

 

[Chinmasterflex]

I just read some of the other threads on hemholtz resonators, drew what I wanted on a Post-It and went to my local muffler shop. They were easy to work with and did a great job. It seems like there at least a few shops that will tell you it doesn't do anything, just so you know.

Also, I found that while it almost completely eliminated the drone, I wasn't actually a huge fan of the sound I was left with at WOT.