Awful Drone! Borla Type S. What did I do wrong?

[Bulletnjm]

did this morning when my exhaust fell off! hahaha!

Sounds wicked. Kinda like an old school big block cammed out lol

 

[myfirstford]

Performance Exhaust Systems | Solo Performance

---------- Post added at 07:58 PM ---------- Previous post was at 07:56 PM ----------

Call SOLO and tell them you have the S type and need a J pipe as they may not be on the site. I'm not sure if they have a specific J pipe for the Raptor, but they know how to get rid of drone IMO.

 

[Backinblack]

J pipe is the helmholtz resonator, correct?
That is the way to go. Thread here on that.

 

[myfirstford]

Yes correct.

 

[Ruger]

Years ago I replaced the factory muffler on my Nissan 4x4 with a Flowmaster, and suddenly my truck was *********. I installed a 24 inch Flowmaster resonator and my truck was not only legal again, but had the coolest exhaust note you can imagine. The factory resonator is a ****. Based on my experience, you might try a longer resonator. I bet it's the solution.

 

[csirnak]

Interesting timing on this thread.

I JUST installed a Borla 40349 muffler with my stock exhaust, removed resonator, and boom Terrible drone. Your quote here sums it up:

"We’re not talking a nice barking exhaust note, or a loose exhaust rattle sound. My cab has become a resonating chamber."

After 45 minutes of highway, I had a horrible headache and ringing in my ears yesterday. I can't see putting the resonator back on being that much help.

It is louder in the cab than out. Exhaust isn't even loud from the outside, but it does have a nice tone. I'm thinking about swapping the whole thing out for a Corsa Extreme system. I had Corsa on the old Escalade and it sounded great with zero drone.

 

[SDHQJASON]

We highly recommend the AFE Exhaust for these truck for this exact reason. Great sound when you hammer down and no drone when you are cruising on the highway!

 

[CptMorgan]

BackinBlack is going to hook me up with his take-off Maganflow and to see if that reduces the drone. I'd like to try something before hitting the mountain roads again this weekend.

If this Magnaflow doesn't work, I'm going to buy a whole new system w/ resonator. I’d like more bark than the Borla.

I don’t see any reports of other Borla packages on Raptors with drone issues. I can’t help but think something is bent or broken…. I’m going to give Borla a call.

If you pass a raptor on the highway this weekend pulling a boat and a driver’s wearing earmuffs, that’s me.

 

[Bulletnjm]

BackinBlack is going to hook me up with his take-off Maganflow and to see if that reduces the drone. I'd like to try something before hitting the mountain roads again this weekend.

If this Magnaflow doesn't work, I'm going to buy a whole new system w/ resonator. I’d like more bark than the Borla.

I don’t see any reports of other Borla packages on Raptors with drone issues. I can’t help but think something is bent or broken…. I’m going to give Borla a call.

If you pass a raptor on the highway this weekend pulling a boat and a driver’s wearing earmuffs, that’s me.

Your soft

 

[CptMorgan]

Just talked to Borla Tech. Very helpfull.

Two things to check when I'm home:
1) Muffler internal damage. Ensure the muffler sounds solid when taped and not hollow or empty sounding.

2) Change the intake back to stock. He's fairly sure this is the problem. Reports of certain intakes resonating with the exhaust.

Now I need to go find the old OEM intake in the attic...