Jump to content

Exhaust Adaptive Valve

MotoMedic

By MotoMedic
in Engines & Drivetrain

 Share

Recommended Posts

Bigluke Enthusiast

Bigluke

Posted
Posted (edited)

I ran mine over the axle then dumped them by the spare tire. I would recommend doing that the same. My buddy dumps his right after the muffler and its pretty loud.

 

Did you notice any power lose when dumping it

Edited by Bigluke
  • Replies 140
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

CorvetteOJ
CorvetteOJ

Hey Medic, when I read your post, I immeidately remembered when I was a kid, (teenager) guys would stick raw potatoes on the end of someone's exhaust pipe, and in most cases, would get the same effect

iCryWheniGoPoop
iCryWheniGoPoop

What Dave said... whats it going to hurt anyway, just put a $2 hose clamp on it for now and see if you like it. If you don't... crawl back underneath it and take 30 seconds to pull it back off. Its ha

45acp
45acp

I like the hose clamp idea. Cheap and easy to try and if you don't like it take it off.   DJ

Posted Images

TJay74 Senior Enthusiast

TJay74

Posted
Posted

I personoally only use Magnaflow, I have the 5x11x22 in mine and it sounds great, but it also was the only muffler that Magnaflow offers that has 3.5" inlet/outlet in a center/offset configuration.

Ulukslo Enthusiast

Ulukslo

Posted
Posted

Tjay , would it be possible to get a sound clip of your truck at startup and idle and rev? Thanks alot

MotoMedic Senior Enthusiast

MotoMedic

Posted
  • Author
Posted

Did I miss it or what's the point of this flapper anyways?

 

To quiet the exhaust note when at lower RPMs... basically the opposite of what most on this forum want. ha

iCryWheniGoPoop Enthusiast

iCryWheniGoPoop

Posted
Posted (edited)

 

Yep... it's supposed to reduce noise/drone during regular driving and V4 mode.

 

Dynomax uses them... notice how smooth & well-designed the Dynomax valve is v/s GM's design. http://www.dynomax.com/mufflers/dynomax-vt-mufflers

 

 

 

 

I wonder what that little return spring is made of on the DynoMax... I just cant see it holding up to a couple thousand heat cycles, but I'm sure DynoMax Engineers have thought of that and made the spring from some tung-stain-tanium alloy, only mined in the remote regions of of SW Kansas.

Edited by iCryWheniGoPoop
kdj14 Enthusiast

kdj14

Posted
Posted

Did the muffler delete at about 700 miles and by a thousand that damn valve started rattling like crazy during cruising speeds. Gonna go with a Magnaflow with dual outlet and regular chrome tips out the rear. Screw that piece of crap valve.

fondupot Senior Enthusiast

fondupot

Posted
Posted

I deleted the valve and it sounds much better!!

 

gallery_127865_2503_178213.jpg

 

gallery_127865_2503_84596.jpg

 

th_IMG_55821.jpg

 

 

Thats stock exhaust? Sounds great!

  • Like 1
Bigluke Enthusiast

Bigluke

Posted
Posted

Okay so I installed my new muffler went with a flowmaster 40 series just single in single out and had the resonator removed it sounds good but there a weird noise almost like a exhaust leak but check all the welds there good. Could this be the stupid valve behind the muffler and should I remove it

Ulukslo Enthusiast

Ulukslo

Posted
Posted

Yes, stock 6.2L exhaust with the adaptive valve removed.

I cant get it to play on Ipad can you put it on youtube or something?

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...