Removed the muffler

[Andrew F]

On 12/18/2019 at 9:32 AM, Andrew F said:

Had the muffler and flapper removed on my 2020 Custom Trail Boss. Love the sound!

 

No issues after a few days of driving. I drive a lot of highway to and from work, typically have my cruise set at 73-75. Cruising at that speed I can hear the exhaust slightly but am not getting any drone. When I'm on the gas or accelerating up hill, there is a slight amount of drone but nothing crazy. Haven't heard any backfiring when downshifting. I do have the AFM disabled so I'm using 8 cylinders all the time.

 

Edited December 19, 2019 by Andrew F

[Belo]

On 5/8/2019 at 10:01 AM, cccjrsbox said:

A better video below.  Figured youtube is better than the file above...

 

 https://youtu.be/j68egCpZm_w

really no drone though?

[cccjrsbox]

12 minutes ago, Belo said:

really no drone though?

Guess it depends on what you mean by drone.  Its audible when accelerating, quiet when coasting.  Amount of sound when accelerating is commensurate with how much gas your giving it.   Cruising at highway speed isn't very noticeable unless going uphill. Honestly though, the whole point is to make it louder -  

[Belo]

1 minute ago, cccjrsbox said:

Guess it depends on what you mean by drone.  Its audible when accelerating, quiet when coasting.  Amount of sound when accelerating is commensurate with how much gas your giving it.   Cruising at highway speed isn't very noticeable unless going uphill. Honestly though, the whole point is to make it louder -  

drone is a hum or drone lol at cruising speeds (50-70). I've owned a lot of performance cars and bikes and typically to get the best acceleration rumble and no drone you have to pay. Drone didn't bother me at 24 with 2 12" subs bumping with friends all the time. But it does at 36 with coworkers, wife or just a podcast playing lol.

 

So it's interesting to hear it's possible with a cutout, which is something even borla can struggle with sometimes. That's why there are those who are skeptic.

 

If i owned and didn't lease I might make an appointment tomorrow to do this. Worst case I'm out $100 to try it and another $100 to undo it. That's still a shit ton cheaper than any aftermarket.

[SquireSCA]

1 hour ago, Belo said:

drone is a hum or drone lol at cruising speeds (50-70). I've owned a lot of performance cars and bikes and typically to get the best acceleration rumble and no drone you have to pay. Drone didn't bother me at 24 with 2 12" subs bumping with friends all the time. But it does at 36 with coworkers, wife or just a podcast playing lol.

 

So it's interesting to hear it's possible with a cutout, which is something even borla can struggle with sometimes. That's why there are those who are skeptic.

 

If i owned and didn't lease I might make an appointment tomorrow to do this. Worst case I'm out $100 to try it and another $100 to undo it. That's still a shit ton cheaper than any aftermarket.

That was my thinking...  If I did the $100 mod and didn't like it, I could just jump in the truck and drive my happy a$$ down to Summit Racing and pick out a catback system and install it...

My 2018 sounds a bit deeper and louder than the 2019, but the 2018 has a definite drone whereas this one is nearly non-existent...

[Woowoo]

Will covering the resonater with muffler tape set iff any warning lights?  I just had a flowmaster 10 series put on and cant even tell. Im thinking about using the muffler tape on the resonater to see if that helps but indont want to trip a warning light in the dash

[Chad's Trail Boss]

Will covering the resonater with muffler tape set iff any warning lights?  I just had a flowmaster 10 series put on and cant even tell. Im thinking about using the muffler tape on the resonater to see if that helps but indont want to trip a warning light in the dash

No it won’t set off any warning lights. I used HVAC aluminum tape on mine several months ago. Holding up just fine.


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[Woowoo]

Thanks. I put a magnaflow on and turned around 5 min after i left and had them swap it out for a flowmaster 10 series. I was still very upset with the results as it was not much louder than stock. I went to the dealership to see what could be dont and all they said was order the CATback system they sell for $1500 and it would help it a little. I wasnt happy about eating $250 on the flowmaster install and definatly wasnt going to eat $1500 for probably the same sound i got according to them. So i got some muffler tape came home and taped all 3 holes up. I am happy now. Would loke more sound but this will due until my warranty runs out and at thatbpoint il probably have the shop cut thenpipe off and put on something without the resionators. Thanks for the info it helped. 

[bdsilverado]

Here's another sound clip to listen to. 

 

[RadoPhan]

You will find if you experiment with covering the resonator mesh screens it will dramatically change the sound.  My magnaflow was very quiet too. I currently have the middle resonator mesh on each side only uncovered and I think it’s the best sound so far. 
Muffler tape works great. Cut it to the shape and stick it on. So far it has stuck great and it doesn’t look like a hack job. 

Any drone from that setup with only the middle resonator uncovered? I’m trying to add a little more tone on mine. I have a Borla Pro XS muffler on mine and still left the “flapper” valve to reduce the noise on the highway especially when DFM is not running all cylinders. But heard that some covered all of them and gets drone and others playing around with the combination of it.


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[RadoPhan]

Thanks. I put a magnaflow on and turned around 5 min after i left and had them swap it out for a flowmaster 10 series. I was still very upset with the results as it was not much louder than stock. I went to the dealership to see what could be dont and all they said was order the CATback system they sell for $1500 and it would help it a little. I wasnt happy about eating $250 on the flowmaster install and definatly wasnt going to eat $1500 for probably the same sound i got according to them. So i got some muffler tape came home and taped all 3 holes up. I am happy now. Would loke more sound but this will due until my warranty runs out and at thatbpoint il probably have the shop cut thenpipe off and put on something without the resionators. Thanks for the info it helped. 

How’s the sound with cruising speeds? I’m thinking about doing the muffler tape too but heard it’s a pain to take off if I don’t like the sound. I’m not looking for something loud. My Borla muffler now is decent and louder than stock but only when you step on it. Just want to squeeze a little more with no drone.


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[Woowoo]

It dies off becouse of the ACM so its not bad. The muffler ibgot was supposed to be annoying loud but without the tape i couldnt even tell. I started with covering 1 screen at a time. I mqy have got a little ambitious by covering them all up though. I may remove 1 of the tapes. I dont have drone, and like ibsaid its not annoying at highway speeds. 

[RadoPhan]

It dies off becouse of the ACM so its not bad. The muffler ibgot was supposed to be annoying loud but without the tape i couldnt even tell. I started with covering 1 screen at a time. I mqy have got a little ambitious by covering them all up though. I may remove 1 of the tapes. I dont have drone, and like ibsaid its not annoying at highway speeds. 

What makes you want to remove some? And what’s ACM, not familiar with that term


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[Woowoo]

AFM sorry. I just noticed how bad my post was. The active Fuel Management system. It drops it from an 8 cylinder to 4 to save gas. I want to remove one of the tapes just to drop the noise a little. It doesnt sound so great when ideling through the neighborhood or around 35mph. Its probably becouse of the flowmaster 10 series i put on it. Here is a clip of it. Put headphones on for the actual sound. Inread that you can delete the AFM or bypass it but the dealer didnt recomend it. Not sure how much gas it actually saves. 

[RadoPhan]

AFM sorry. I just noticed how bad my post was. The active Fuel Management system. It drops it from an 8 cylinder to 4 to save gas. I want to remove one of the tapes just to drop the noise a little. It doesnt sound so great when ideling through the neighborhood or around 35mph. Its probably becouse of the flowmaster 10 series i put on it. Here is a clip of it. Put headphones on for the actual sound. Inread that you can delete the AFM or bypass it but the dealer didnt recomend it. Not sure how much gas it actually saves. 

That sounds good. Any pics of the tape on the tailpipe and brand/type you used?


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