[full-race geoff]

Why would it hurt power? The f150 uses a single 3” just fine.

you are suggesting taking (2) 3” pipes and making them flow through (1) 3” pipe. This increases post turbine backpressure

am not suggesting a muffler-less dump. Rather two 3” in And two 3” out. This is how SPD offers their system and can be done with stock muffler as I’ve done on one of our trucks. Oem dual exhaust outperforms the single exhaust which is why we discontinued ours

 

[GearHead_1]

Yeah... no. You aren't doing yourself any favors, dumping 2 equal sized pipes into 1 of the same diameter. You need to figure out a dual exit. In fact, I think you're wasting any audio benefit you might gain from the trombone by dumping it into one.

Edit: I had this down in my reply box and hadn't hit reply, when I did, I realized Geoff had already responded. I agree with his post.

 

[full-race geoff]

no drone. Flows great. Zero regrets

 

[boostkingMatt]

you are suggesting taking (2) 3” pipes and making them flow through (1) 3” pipe. This increases post turbine backpressure

am not suggesting a muffler-less dump. Rather two 3” in And two 3” out. This is how SPD offers their system and can be done with stock muffler as I’ve done on one of our trucks. Oem dual exhaust outperforms the single exhaust which is why we discontinued ours

Well I want a dual, but it’s not cheap. I’ll see what I can come up with.

 

[boostkingMatt]

Yeah... no. You aren't doing yourself any favors, dumping 2 equal sized pipes into 1 of the same diameter. You need to figure out a dual exit. In fact, I think you're wasting any audio benefit you might gain from the trombone by dumping it into one.

Edit: I had this down in my reply box and hadn't hit reply, when I did, I realized Geoff had already responded. I agree with his post.

I agree it’s not ideal and no it will not mess up the sound. I had the same exact setup in my 2.7 and it had the signature sound even though after the trombone it y piped into a single. I most likely will get a dual setup.

 

[GearHead_1]

I didn't say mess up the sound, but I don't believe you're getting everything you can from a sonic perspective vs. a dual exhaust while using the trombone. That's like running a dual exhaust side by side against a single exhaust and say they will sound the same.

 

[boostkingMatt]

I didn't say mess up the sound, but I don't believe you're getting everything you can from a sonic perspective vs. a dual exhaust while using the trombone. That's like running a dual exhaust side by side against a single exhaust and say they will sound the same.

Oh, yeah I agree. I’ll see if SPD will do a deal on their Helmholtz muffler

 

[EcoXLT]

View attachment 201389
no drone. Flows great. Zero regrets
View attachment 201388

Impressive leaf spring stack.

 

[GearHead_1]

Oh, yeah I agree. I’ll see if SPD will do a deal on their Helmholtz muffler

Did your previous truck have drone with this setup? That's primarily what Helmholtz muffler does, is eliminate drone.

 

[boostkingMatt]

Did your previous truck have drone with this setup? That's primarily what Helmholtz muffler does, is eliminate drone.

Nope, my old truck had no drone. It did before I did the equal length downpipes though, so that change in exhaust sound frequencies somehow got rid of unwanted noise.

 

[boostkingMatt]

Welp, here’s the setup!! SPD Alpha Raptor downpipes and a 2021+ OEM ford raptor trombone! Stage 5 turbos arrive tomorrow. Got my work cut out for me this weekend.

 

[boostkingMatt]

It looks as though SPD is going to send me their HX Helmholtz muffler and it will be a pre axle dump. I didn’t want that originally, but after seeing some people’s videos of the way it sounds, and taking into consideration the extra exhaust flow I think that’s the way I’m going with this setup.

 

[TOWMA8R]

It looks as though SPD is going to send me their HX Helmholtz muffler and it will be a pre axle dump. I didn’t want that originally, but after seeing some people’s videos of the way it sounds, and taking into consideration the extra exhaust flow I think that’s the way I’m going with this setup.

We will judge when you post the video

 

[boostkingMatt]

Stage 5s came in today

 

[GearHead_1]

What is your goal with that muffler?

 

[boostkingMatt]

What is your goal with that muffler?

I’m doing the raptor downpipes to the trombone, and then to an SPD performance HX muffler which is dual in, and dual out with an X pipe and it’s gonna be pre-axle dumps.

 

[GearHead_1]

Does the muffler have a secondary chamber/resonator? Something to this effect? The reason I asked earlier in this thread is that to my knowledge these are most often used to squelch drone. If you don't have any drone, why would you?

I have zero experience with these, other than what I have read on the Exploder forum. People were saying they did help with drone, but they weren't loving the sound. Perhaps Helmholtz makes more traditional mufflers, to which I have no knowledge.

 

[boostkingMatt]

Does the muffler have a secondary chamber/resonator? Something to this effect? The reason I asked earlier in this thread is that to my knowledge these are most often used to squelch drone. If you don't have any drone, why would you?

I have zero experience with these, other than what I have read on the Exploder forum. People were saying they did help with drone, but they weren't loving the sound. Perhaps Helmholtz makes more traditional mufflers, to which I have no knowledge.

View attachment 201498

I am not sure, I think it’s the Helmholtz. It has a resonator up top yeah, but doesn’t affect over all volume of the exhaust. I guess the SPD exhaust could have some drone at certain rpm’s with the axle dump and high flow downpipes so the Helmholtz helps with that.

 

[boostkingMatt]

Beautiful 50mm 8 blade

 

[FanaticalKilla]

Busy weekend ahead of you?