Jump to content

Best exhaust for 6.2

Je_suis_prest

By Je_suis_prest
in Engines & Drivetrain

Recommended Posts

Je_suis_prest Enthusiast

Je_suis_prest

Posted
Posted

Been tossing around the idea of having a muffler installed. I would leave factory piping simply cuz it's stainless. Had an Imco (identical to flow master) put on my last denali. Sounded great! Wondered what you guys have installed, if any. Thanks!!

  • Replies 37
  • Created
  • Last Reply
fondupot Senior Enthusiast

fondupot

Posted
Posted

Corsa or Borla cat back.

 

But so you know there will be "helicopter" noise when you go into V4 mode. Unless you have it tuned out, or install a Range device.

Lgetz Senior Enthusiast

Lgetz

Posted
Posted

Do Magnaflow 12909 in place of OE muffler and flapper valve. Any competent exhaust shop should be able to cut out and replace with no issue. Including labor for install mine ran about $155-$160 granted I had a discount coupon from Advance Auto when I ordered. Great sounding at startup and a deeper tone plus minimal drone in V4 mode.

country_09 Enthusiast

country_09

Posted
Posted

I have that same magnaflow 12909 on my truck, I do love it it. Had no drone at 75-80 even with headers and no cats

Je_suis_prest Enthusiast

Je_suis_prest

Posted
  • Author
Posted

Do Magnaflow 12909 in place of OE muffler and flapper valve. Any competent exhaust shop should be able to cut out and replace with no issue. Including labor for install mine ran about $155-$160 granted I had a discount coupon from Advance Auto when I ordered. Great sounding at startup and a deeper tone plus minimal drone in V4 mode.

What is the "flapper valve" and did u have the resonators removed too?

Badass69 Senior Enthusiast

Badass69

Posted
Posted

I have an MBRP and honestly get nothing but compliments on how my truck sounds....... that said..... I wish the factory tailpipe wasn't such a goof ball design with the flapper and resonator in it as the MBRP 409 tubing will rot off this truck long before the stock system would have even shown corrosion. If it weren't for all the hacking I would have had to do I would have just swapped mufflers...... but by the time you delete that retarded valve and the resonator you may as well buy a kit.

Lgetz Senior Enthusiast

Lgetz

Posted
Posted

What is the "flapper valve" and did u have the resonators removed too?

Flapper valve is directly behind OE muffler and is designed to cut down on drone when in V4 mode. I did not have the shop remove the resonator and exhaust sounds fine.
Silver ice 6.2 Senior Enthusiast

Silver ice 6.2

Posted
Posted

This is me... not being cocky but for the 2014-up gm trucks this sounds amazing. I've since have clamped open my valve. And sound is way better. But invisible helicopter follows me

 

 

Edelman13 Enthusiast

Edelman13

Posted
Posted

This is me... not being cocky but for the 2014-up gm trucks this sounds amazing. I've since have clamped open my valve. And sound is way better. But invisible helicopter follows me

 

 

What do you have ?

 

 

Sent from my iPhone using Tapatalk

Silver ice 6.2 Senior Enthusiast

Silver ice 6.2

Posted
Posted

What do you have ?

Sent from my iPhone using Tapatalk

Thought of an exhaust. Built it in my head. Did a Lil research. Bought a borla and xr1 muffler. Corsa look alike tips and mandrel bent tubing.. yes I still have my 3rd cat. And yes i have my valve.. check out my other videos to hear more. I made a video of me crawling under the truck to show what I have
Je_suis_prest Enthusiast

Je_suis_prest

Posted
  • Author
Posted

Flapper valve is directly behind OE muffler and is designed to cut down on drone when in V4 mode. I did not have the shop remove the resonator and exhaust sounds fine.

Am I voiding all warranties removing everything?

Badass69 Senior Enthusiast

Badass69

Posted
Posted

Voiding the warranty on your factory catback exhaust yes... anything else no.

 

Sent from my SM-G900W8 using Tapatalk

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • PhilB
      No 12v outlets in 2026 gmc Sierra

      By PhilB · Posted

      It is possible to add your own 12v outlet to your truck.  Check out this video:   I verified via GM Upfitters that pin 31 is the same on the 1500 trucks.  The wire is GM part number 84779405.   You can get the GM 12v outlet from Amazon  https://www.amazon.com/Genuine-Accessory-Receptacle-25774623-13549530/dp/B0F1H9YRGF EWAY 12 Volt Power Adapter for GM   https://www.amazon.com/EWAY-Chevrolet-Silverado-Cigarette-Ignition/dp/B0915RRW6Q/ref=sr_1_1?   I just haven't figured out a good place to put the 12v outlet in my truck.   Some people are getting USB-C to 12V adapters  https://www.amazon.com/WYMECT-Cigarette-Lighter-Socket-Adapter/dp/B0F87WNQKB/ref=sr_1_1_sspa? Not sure if they provide the correct amperage that a device like a tire inflator would need.  
    • Core-Lokt
      Wiring Help, Please

      By Core-Lokt · Posted

      Thanks; I looked there a few minutes, and I think I can find something. I really never looked there, as I thought it was stuff like PTO/aftermarket bodies/accessories like snow plows.
    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...