Jump to content

Afe muffler replacement 5.3 10 speed trail boss lt

Firehawk99
 Share

Recommended Posts

hertge Enthusiast

hertge

Posted
Posted

Muffler was on backorder supposed to be here Wednesday, what did you use to cut the back of the muffler so close? How close did you cut it? Worried about cutting out the flapper the directions say to keep it.

  • Replies 33
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Firehawk99
Firehawk99

Well I had to run out so here ya go. I also debated just doing the muffler delete but I'm very happy I didn't. To me the sound now with the resonators welded shut is perfect.

Firehawk99
Firehawk99

Exactly. The supplied clamps work great.

Posted Images

Firehawk99 Enthusiast

Firehawk99

Posted
  • Author
Posted
1 hour ago, hertge said:

Muffler was on backorder supposed to be here Wednesday, what did you use to cut the back of the muffler so close? How close did you cut it? Worried about cutting out the flapper the directions say to keep it.

I used a sawzall with a 6" blade. You will have plenty of room to cut it out.

Trza Enthusiast

Trza

Posted
Posted
18 hours ago, Firehawk T/A said:

I used a sawzall with a 6" blade. You will have plenty of room to cut it out.

I'm supposed to receive mine on Monday. Just to confirm, the instructions say to cut the rear 2.75 inches from the rear of the muffler, but you are saying cut it as flush to the rear of the muffler as you can in order to make room for cutting out the flapper? And in the front chop it just before the flapper and it should leave enough room?

 

Are the supplied clamps good enough or should I buy some of the 3 inch long band clamps that Amazon sells?

 

Thanks!

Firehawk99 Enthusiast

Firehawk99

Posted
  • Author
Posted
34 minutes ago, Trza said:

I'm supposed to receive mine on Monday. Just to confirm, the instructions say to cut the rear 2.75 inches from the rear of the muffler, but you are saying cut it as flush to the rear of the muffler as you can in order to make room for cutting out the flapper? And in the front chop it just before the flapper and it should leave enough room?

 

Are the supplied clamps good enough or should I buy some of the 3 inch long band clamps that Amazon sells?

 

Thanks!

Exactly. The supplied clamps work great.

  • Thanks 1
hertge Enthusiast

hertge

Posted
Posted
On 12/19/2020 at 11:20 AM, Trza said:

I'm supposed to receive mine on Monday. Just to confirm, the instructions say to cut the rear 2.75 inches from the rear of the muffler, but you are saying cut it as flush to the rear of the muffler as you can in order to make room for cutting out the flapper? And in the front chop it just before the flapper and it should leave enough room?

 

Are the supplied clamps good enough or should I buy some of the 3 inch long band clamps that Amazon sells?

 

Thanks!

Get it installed yet? Any tips or pictures would be appreciated.  I have got a chain cutter and a sawzall ready to go for Wednesday.

Firehawk99 Enthusiast

Firehawk99

Posted
  • Author
Posted
12 minutes ago, hertge said:

Get it installed yet? Any tips or pictures would be appreciated.  I have got a chain cutter and a sawzall ready to go for Wednesday.

Just remember after you cut the stock muffler out, the rear dual  pipes will pull to the back of the truck due to the tension on the hangers. When you assemble the new muffler it will seem short, so just pull the rear pipe towards  the front of the truck to fit it into the new pipe.

Trza Enthusiast

Trza

Posted
Posted
43 minutes ago, hertge said:

Get it installed yet? Any tips or pictures would be appreciated.  I have got a chain cutter and a sawzall ready to go for Wednesday.

Yeah. It was an easy install! I used a reciprocating saw with a Diablo metal cutting blade and it cut right through the piping with barely any pressure. 

 

Like Firehawk said, if you plan on cutting out the flapper, cut in front of the flapper. The pipe bulges a bit in front of the flapper where its factory welded, so make sure to cut before it bulges (toward front of truck), it then flares a bit before straightening out. At first I cut after the bulge and the muffler didn't fit. I had to make a second cut not realizing the small flare. There is quite a bit of room to play with, don't worry about it being short.

 

On the backside of the muffler, cut it as flush as you can to the muffler. I used a saw so I had at least 1, if not 2 inches off the muffler since I couldn't physically get the saw any closer to make a straight cut...again, lots of room to play with.

 

Make sure to have a jack to hold the muffler up once you make the first cut. Make sure to check the clamps. The biggest clamp goes at the rear of the muffler. The other 2 are the same size and go on opposite ends.

 

It's a great muffler. Really happy with it. I can't believe how quiet it is on the highway and cruising, zero drone...but when you step on it, coupled with my S&B intake, you can really hear it. The throttle response is much better too, I had a little bit of stalling where you can feel the engine almost stutter before power delivery, now its gone. And I can't even tell if there's a change in sound with the flapper gone. It was noticeable in my 2015. 

 

Let me know if you have any other questions. 

hertge Enthusiast

hertge

Posted
Posted

Muffler install is done!  Went super smooth thanks to you guys, not to loud with a little extra rumble.  Thanks again.

Trza Enthusiast

Trza

Posted
Posted
10 hours ago, hertge said:

Muffler install is done!  Went super smooth thanks to you guys, not to loud with a little extra rumble.  Thanks again.

Awesome! Welcome to the club ?

Firehawk99 Enthusiast

Firehawk99

Posted
  • Author
Posted
21 hours ago, hertge said:

Muffler install is done!  Went super smooth thanks to you guys, not to loud with a little extra rumble.  Thanks again.

Good to hear! For an all stainless steel muffler and a great exhaust tone its a no Brainer. I couldn't justify spending close to a grand on a full cat back kit for the same result.

ero2 Enthusiast

ero2

Posted
Posted

Would I gain a different tone and a bit more rumble going with the muffler, the flaps cut out, but leaving the resonators alone?  Or not really worth it without covering those?

Firehawk99 Enthusiast

Firehawk99

Posted
  • Author
Posted
1 hour ago, ero2 said:

Would I gain a different tone and a bit more rumble going with the muffler, the flaps cut out, but leaving the resonators alone?  Or not really worth it without covering those?

It will still sound great with the resonators uncovered. Not as loud though. Play around with it, cover them up 1 on each pipe at a time and see how it sounds to you. The more you cover up the louder it gets.

TeamSaris Enthusiast

TeamSaris

Posted
Posted (edited)

Great post. Love your truck, and the bird! Where in NY are you?

Ill be copying your exhaust setup for sure. A little rumble with no cabin noise. Whats not to like?

Was it the Apollo GT? And have you noticed any real change in MPG?

Edited by TeamSaris
Firehawk99 Enthusiast

Firehawk99

Posted
  • Author
Posted
6 hours ago, TeamSaris said:

Great post. Love your truck, and the bird! Where in NY are you?

Ill be copying your exhaust setup for sure. A little rumble with no cabin noise. Whats not to like?

Was it the Apollo GT? And have you noticed any real change in MPG?

Thanks! I live near Buffalo.  It is the Apollo GT and I haven't noticed any change in the mpg.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Aimatdeer
      Ac not keeping up

      By Aimatdeer · Posted

      Monday looks like a good day for the dealer to test an ac issue. Hopefully it all turns out good.
    • CamGTP
      Gas Prices

      By CamGTP · Posted

      Paid $2.72 for E85 today.
    • Atlas
      Gas Prices

      By Atlas · Posted

      Welcome back! No, it definitely doesn't pass the sniff test. Even "ceasefire" needs an alternative definition these days.    $5.29 at Kroger today
    • bluev8
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By bluev8 · Posted

      That makes sense, and I think you are describing the real product problem. Capturing data is the easy part. If the owner or technician has to manually dig through five minutes of millisecond-level logs, the product has already failed. The device would be at the ECM harness, not at the OBD port, so I agree that data retrieval and event marking need to be thought through carefully. The way I am thinking about the architecture is: The recorder itself should not depend on a phone, app, Bluetooth, Wi-Fi, or cloud connection to capture the event. It should always keep a local rolling buffer and lock the event locally. A button, phone app, or small cabin device would only act as an event marker. If the driver feels a stumble and presses the button 10–30 seconds later, the pre-buffer has to already contain the useful data. For data retrieval, the practical options would be a sealed service USB lead, Wi-Fi download, or a phone/cabin companion device. I would not expect the owner to remove the ECM-side module or work with raw files directly. The cloud or AI side would be for interpretation, not for capturing the event. The truck may have no connection when the issue happens, so the evidence has to be saved locally first. After that, cloud processing could help decode the data, compare it against baselines, and generate a readable report. For the first version, I would keep the automatic triggers conservative and objective: driver event marker bus-off error passive voltage drop / brownout device reset FIFO or queue overflow a normally periodic message disappearing side-to-side communication mismatch, if the topology supports that For “learning normal,” I agree with your point, but I would not want to overclaim it as automatic root-cause diagnosis at first. A realistic first step would be learned baseline comparison for that specific vehicle and operating condition. For example, a value would only be compared against similar conditions: RPM range load / MAP throttle position gear / vehicle speed coolant and oil temperature battery voltage AFM/DFM state, if decoded and validated Then the report could flag things like: this periodic message disappeared compared with its normal timing this value deviated from this vehicle’s normal range under similar conditions the same abnormal pattern repeated after the same type of event the anomaly occurred together with voltage, oil-pressure, misfire, or communication changes But I would still call that “abnormal pattern detected,” not “replace this part,” unless there is enough validated repair data behind it. So the intended product would not be “here is a huge log.” It would need to be an event package: what triggered the capture how much pre/post data was preserved what changed before and after the event whether the device itself reset, overflowed, or saw a bus error selected graphs around the event raw data only as supporting evidence From your perspective, what would make this kind of report useful instead of just another datalog? For example: What are the top 5 parameters or events you would want highlighted first? Would you trust a learned baseline for that specific vehicle, or would you prefer fixed thresholds? How much false-positive flagging would be acceptable before you stopped looking at the reports? What would a one-page report need to show for an independent shop to take it seriously? For misfire, AFM/DFM, oil pressure, or U-code complaints, what would you want the tool to flag automatically?
    • scotthvac.net
      2022-24 halogen - led grille swap

      By scotthvac.net · Posted

      2024 Silverado 2500 HD LTZ grille no camera Parts list   84603331 84913656 84913657 84913654 84913655 84911567 84911568 85646092 85646093 85797921 85797922   11570637  x10-15   grille/bumper bolts 11546500  x10      grille clips 11571006  x10      push/retainer clips 11546454  x6       nut retainers 11611609  x6       M5 bolts 11610700  x6       molding/trim retainers

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...