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Did Muffler/Flapper Valve Delete Today

21trailboss
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21trailboss Enthusiast

21trailboss

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I have read and listened to sound clips as much as I could and I decided to go for it. I have a 2021 TB with the 6.2 and I just couldn't stand how quiet it was.  I took it to the exhaust shop today and had them cut out the flapper valve and muffler and weld in a new piece of pipe. I kept the 2 resonators in place. I have to say I was pleasantly surprised and love the sound. well worth the $100. I spent.  But the problem is I can now hear clearly when it goes into deactivating cylinders....that I don't like at all.

can anyone tell me what's the fix to keep it in V8 mode all the time?  

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JohnH4260 Enthusiast

JohnH4260

Posted
Posted
1 hour ago, 21trailboss said:

I have read and listened to sound clips as much as I could and I decided to go for it. I have a 2021 TB with the 6.2 and I just couldn't stand how quiet it was.  I took it to the exhaust shop today and had them cut out the flapper valve and muffler and weld in a new piece of pipe. I kept the 2 resonators in place. I have to say I was pleasantly surprised and love the sound. well worth the $100. I spent.  But the problem is I can now hear clearly when it goes into deactivating cylinders....that I don't like at all.

can anyone tell me what's the fix to keep it in V8 mode all the time?  

Run it in manual mode (L9 on the column shifter), and that will keep it in V8 mode. No DFM.

21trailboss Enthusiast

21trailboss

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13 hours ago, JohnH4260 said:

Run it in manual mode (L9 on the column shifter), and that will keep it in V8 mode. No DFM.

Thank you John. So the truck wont shift to 10th gear in this scenario correct?  I will try this but i really would like to just put the truck in drive and and still not have DFM working. 

JohnH4260 Enthusiast

JohnH4260

Posted
Posted
11 hours ago, 21trailboss said:

Thank you John. So the truck wont shift to 10th gear in this scenario correct?  I will try this but i really would like to just put the truck in drive and and still not have DFM working. 

Yes, if you keep it in L9, the truck will shift through gears 1-9 and not go into DFM. So V8 mode all the time. Another option is to purchase the Pulsar LT from Range Technology for $449.95 and deactivate DFM using this device.Then you can keep it in D mode, and DFM will not be activated. Link for Pulsar LT below.

https://www.rangetechnology.com/products/pulsar_lt/parts/22451

RStrain56 Enthusiast

RStrain56

Posted
Posted

I had a new muffler installed and removed the flappers. The tones(to me) aren't unbearable, just not ideal. I'm like you, though, trying to find an alternative way around.

I've debated having one or both flappers reinstalled, and maybe removing the resonators. I haven't yet found anyone that's done this setup for a reference, though.

Sent from my SM-G965U1 using Tapatalk

  • 2 weeks later...
BowtieSquatch Enthusiast

BowtieSquatch

Posted
Posted

Had mine cut out about a month ago, sounds great, minor drone.. for the $75 I spent it was well worth it.  I have the 5.3 and get asked all the time if it's the 6.2. 

Troger Enthusiast

Troger

Posted
Posted
On 1/13/2021 at 8:15 PM, 21trailboss said:

I have read and listened to sound clips as much as I could and I decided to go for it. I have a 2021 TB with the 6.2 and I just couldn't stand how quiet it was.  I took it to the exhaust shop today and had them cut out the flapper valve and muffler and weld in a new piece of pipe. I kept the 2 resonators in place. I have to say I was pleasantly surprised and love the sound. well worth the $100. I spent.  But the problem is I can now hear clearly when it goes into deactivating cylinders....that I don't like at all.

can anyone tell me what's the fix to keep it in V8 mode all the time?  

Is this the exhaust leak type sound you are hearing? 

Rob Mugs Enthusiast

Rob Mugs

Posted
Posted
29 minutes ago, Troger said:

Is this the exhaust leak type sound you are hearing? 

I understand it sounds more like a helicopter.  I have an S&B intake (noisy) and my flapper removed.  I don't hear this

21trailboss Enthusiast

21trailboss

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52 minutes ago, Troger said:

Is this the exhaust leak type sound you are hearing? 

There is no exhaust leak sound.....It just sound like a 4 cylinder like a honda or suburu with an aftermarket pipe on it lol. Just sounds weird....Im going to do the pulsar lt as suggested above.  

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