Jump to content

Performance Upgrade Package

brothernov
 Share

Recommended Posts

Chips Enthusiast

Chips

Posted
Posted (edited)

Curious On this .

These “Catback” exhaust systems are just that, from the cat back replaced.

why pay all that money to replace GMs OEM piping which is already stainless!

 

The only gains you Get are from the muffler swap , taking the old muffler out with the flappers and replacing with a high flow muffler no flappers.

 

essentially that 13 HP gain for $2000 dollars can be had for around 200-300 dollars.

 

save your money people, replace the muffler you will get the same gains and sound or better lol.

 

as far as a cold air intake , get S&B , Volant or Cold Air Inductions. They make much better design intakes and filters. Disconnect the negative battery terminal during installation. This resets the ECM so it can re learn the fuel trims . 

 

No need to get GMs “Tune” . Its not a tune.

Edited by Chips
  • Like 3
  • Replies 132
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

OnTheReel
OnTheReel

The exhaust isn’t obnoxious at all but certainly a noticeable difference over the stock exhaust which is basically silent at all engine speeds.   If I’m honest, it was a little louder than I

SierraAT4
SierraAT4

This video convinced me to buy one:   

Chips
Chips

Curious On this . These “Catback” exhaust systems are just that, from the cat back replaced. why pay all that money to replace GMs OEM piping which is already stainless!   The only

Posted Images

INTJ Enthusiast

INTJ

Posted
Posted
39 minutes ago, Chips said:

Curious On this .

 

These “Catback” exhaust systems are just that, from the cat back replaced.

why pay all that money to replace GMs OEM piping which is already stainless!

 

The only gains you Get are from the muffler swap , taking the old muffler out with the flappers and replacing with a high flow muffler no flappers.

 

essentially that 13 HP gain for $2000 dollars can be had for around 200-300 dollars.

 

save your money people, replace the muffler you will get the same gains and sound or better lol.

 

as far as a cold air intake , get S&B , Volant or Cold Air Inductions. They make much better design intakes and filters. Disconnect the negative battery terminal during installation. This resets the ECM so it can re learn the fuel trims . 

 

No need to get GMs “Tune” . Its not a tune.

 

As of a couple months ago, the only emissions legal CAI was the GMPP.  Also, the GMPP exhaust does not cause any drone.  If you just get a muffler you'll may well get a drone.  You'll just have to research and try things.  All the reflash does is turn off the air filter minder.  

 

If you wind up with any rewards or discounts, you can beat $2k installed.  Even if you can't, the difference between $300 and $2000 over a 100,000 miles isn't significant.  At all in how much time and desire you have to fuss with stuff.

Chips Enthusiast

Chips

Posted
Posted
50 minutes ago, INTJ said:

 

As of a couple months ago, the only emissions legal CAI was the GMPP.  Also, the GMPP exhaust does not cause any drone.  If you just get a muffler you'll may well get a drone.  You'll just have to research and try things.  All the reflash does is turn off the air filter minder.  

 

If you wind up with any rewards or discounts, you can beat $2k installed.  Even if you can't, the difference between $300 and $2000 over a 100,000 miles isn't significant.  At all in how much time and desire you have to fuss with stuff.

 

Emissions legal? Must be talking Cali.

 

Anyway just thought it should be brought up you can buy just the muffler from borla and still get no drone and effectively accomplish the same thing.

 

A cat back exhaust system on these trucks wont produce much if any more than a muffler swap/ flapper delete. 

 

 

  • Like 1
INTJ Enthusiast

INTJ

Posted
Posted (edited)
8 hours ago, Chips said:

 

Emissions legal? Must be talking Cali.

 

Anyway just thought it should be brought up you can buy just the muffler from borla and still get no drone and effectively accomplish the same thing.

 

A cat back exhaust system on these trucks wont produce much if any more than a muffler swap/ flapper delete. 

 

 

 

Not in CA and I will never live there.  Many states now follow CARB emissions standards, but there are federal emissions standards that all vehicles have to meet and as if a couple of months ago, none of the CAIs for the 2020 6.2 were legal.  

 

No doubt the muffler is the big issue, but when buying the GMPP/Borla, you are also paying for the testing and engineering that went into eliminating the drone and minimizing the helicopter sound.  That makes it worth the cost to many of us.  For those wanting to spend as little as possible, they will have to do their own research and testing.  

 

Neither choice is wrong, but people do need to be aware.......

Edited by INTJ
Tcolburntexas Enthusiast

Tcolburntexas

Posted
Posted (edited)
7 hours ago, INTJ said:

 

Not is CA and I will never live there.  Many states now follow CARB emissions standards, but there are federal emissions standards that all vehicles have to meet and as if a couple of months ago, none of the CAIs for the 2020 6.2 were legal.  

 

No doubt the muffler is the big issue, but when buying the GMPP/Borla, you are also paying for the testing and engineering that went into eliminating the drone and minimizing the helicopter sound.  That makes it worth the cost to many of us.  For those wanting to spend as little as possible, they will have to do their own research and testing.  

 

Neither choice is wrong, but people do need to be aware.......

 

Edited by Tcolburntexas
  • 4 months later...
204Denali Enthusiast

204Denali

Posted
Posted
On 7/26/2020 at 4:12 PM, Chips said:

 

Emissions legal? Must be talking Cali.

 

Anyway just thought it should be brought up you can buy just the muffler from borla and still get no drone and effectively accomplish the same thing.

 

A cat back exhaust system on these trucks wont produce much if any more than a muffler swap/ flapper delete. 

 

 

Just swapping in a Borla muffler will lead to drone.  If you do some more custom work or keep 1 or both flappers in you very well could reduce/stop the drone all together.

 

Don't get me wrong, I went with a custom setup myself and the GM performance exhaust is a joke IMO and not worth the money, but it does have minimal drone but it also adds next to no sound, so really what was the point?

 

 

lapoolboy Senior Enthusiast

lapoolboy

Posted
Posted
9 hours ago, 204Denali said:

Just swapping in a Borla muffler will lead to drone.  If you do some more custom work or keep 1 or both flappers in you very well could reduce/stop the drone all together.

 

Don't get me wrong, I went with a custom setup myself and the GM performance exhaust is a joke IMO and not worth the money, but it does have minimal drone but it also adds next to no sound, so really what was the point?

 

 

I don't know what GM Performance exhaust you heard, but it is not a "joke", very well-built, and DEFINITELY adds sound over stock.

204Denali Enthusiast

204Denali

Posted
Posted (edited)
8 minutes ago, lapoolboy said:

I don't know what GM Performance exhaust you heard, but it is not a "joke", very well-built, and DEFINITELY adds sound over stock.

I said imo, and that is fine its built good and has some sound, barely, over the stock setup.  But I don't buy exhaust systems purely for sound, that is a component but not the entire reason.  If you want sound and that is your goal, do a muffler swap.  I've put on or had made many exhaust setups over the years, some are worth their price tag, Corsa and corvette come to mind, where others are not.  Is the GM exhaust worth the price tag? nope, but like I said that is my opinion.

Edited by 204Denali
bshort Enthusiast

bshort

Posted
Posted
1 hour ago, 204Denali said:

 has some sound, barely, over the stock setup.  

Should probably turn your hearing aids up.  

204Denali Enthusiast

204Denali

Posted
Posted
3 minutes ago, bshort said:

Should probably turn your hearing aids up.  

Good one.  Defensive much.  Its not loud, sorry that hurts your feelings 

  • Haha 1
  • 3 weeks later...
Supercup Enthusiast

Supercup

Posted
Posted
On 12/24/2020 at 5:37 AM, 204Denali said:

I said imo, and that is fine its built good and has some sound, barely, over the stock setup.  But I don't buy exhaust systems purely for sound, that is a component but not the entire reason.  If you want sound and that is your goal, do a muffler swap.  I've put on or had made many exhaust setups over the years, some are worth their price tag, Corsa and corvette come to mind, where others are not.  Is the GM exhaust worth the price tag? nope, but like I said that is my opinion.

 

Why do you feel it is not worth the price tag?  It is not cheap but the exhaust with the CAI offer fully factory engineered and backed parts, K&N filter, better sound, better flow and a new factory tune tying it all together.  It makes a legitimate 15 hp and 9 ft.lbs. of torque over stock set up (link:  https://www.gmc.com/gmc-life/trucks/sierra-at4-off-road-performance-package)

 - so unless you want more sound - what is not to like, other than maybe the OEM pricing!   Fully engineered OEM system that makes real power - that is a good combination in my book.  I have it on my 6.2L AT4 and find the total package a pretty good deal. 

lapoolboy Senior Enthusiast

lapoolboy

Posted
Posted
1 hour ago, Supercup said:

 

Why do you feel it is not worth the price tag?  It is not cheap but the exhaust with the CAI offer fully factory engineered and backed parts, K&N filter, better sound, better flow and a new factory tune tying it all together.  It makes a legitimate 15 hp and 9 ft.lbs. of torque over stock set up (link:  https://www.gmc.com/gmc-life/trucks/sierra-at4-off-road-performance-package)

 - so unless you want more sound - what is not to like, other than maybe the OEM pricing!   Fully engineered OEM system that makes real power - that is a good combination in my book.  I have it on my 6.2L AT4 and find the total package a pretty good deal. 

Mine didn't come with a K&N filter.

Supercup Enthusiast

Supercup

Posted
Posted
45 minutes ago, lapoolboy said:

Mine didn't come with a K&N filter.

I could be wrong, but my buddy works at K&N and he told me they make the filter for GM, just like the K&N filter in my 2015 Z/28.  

  • Like 1
204Denali Enthusiast

204Denali

Posted
Posted (edited)
On 1/10/2021 at 7:00 PM, Supercup said:

 

Why do you feel it is not worth the price tag?  It is not cheap but the exhaust with the CAI offer fully factory engineered and backed parts, K&N filter, better sound, better flow and a new factory tune tying it all together.  It makes a legitimate 15 hp and 9 ft.lbs. of torque over stock set up (link:  https://www.gmc.com/gmc-life/trucks/sierra-at4-off-road-performance-package)

 - so unless you want more sound - what is not to like, other than maybe the OEM pricing!   Fully engineered OEM system that makes real power - that is a good combination in my book.  I have it on my 6.2L AT4 and find the total package a pretty good deal. 

I don't see the value in it.  If we were talking the Corsa setup then I might agree.  Like I said I  am all about aftermarket setups if I see the benefit, all my summer cars have full setups from the headers back, Corsa on the Vette, Magnaflow on the Roush, but the GM perf exhaust I do not see the setup matching the price tag.  The muffler is basically the XR, which imo is not loud enough.  It just doesn't make enough sound for me.  Your basically paying the GM tax for the setup.  I put a custom mandrel bent setup on mine instead.

Your also taking the catback and combining it with the CAI for the numbers, which I'm not denying they are there, but not many are buying both. I also think the GM CAI is overpriced as well, plenty of other choices out there that cost less and look better, and put up good numbers.  I'm not after numbers, if that was what I  was looking for I'd be looking into heavy engine mods.  If I want to go fast, I pull out my car (when its not winter lol)

Edited by 204Denali
  • Like 1

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

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,897
    Total Members
    8,960
    Most Online
    ncleg
    Newest Member
    ncleg
    Joined

  • Who's Online   0 Members, 0 Anonymous, 1,286 Guests (See full list)

    • There are no registered users currently online

  • Latest Articles

  • Posts

    • dna9656
      New to Me 2010 SLE (Quirks, Issues)

      By dna9656 · Posted

      Your tire pressure issue may just be batteries, you can reset them using tge Ing switch (I think) and the owner's  manual. ChatGTP will b e a faster, better help than Google.
    • Another JR
      Towing In Loose Gravel

      By Another JR · Posted

      The thinking is that starting out in a higher gear makes it easier to avoid applying excessive torque when pressing the gas pedal. In a modern 4wd truck with 4 low and a limited slip or locking rear end, I would use 4 low and try to crawl up the ramp. Sometimes if they are too slippery, you have to back up to let the boat have some bouyancy, and then accelerate briskly to get some momentum to help you pull the through the slippery parts. 
    • XY74
      Roll up bed cover experiences

      By XY74 · Posted

      I have a Retrax pro that I first had on my 2020 chevy and transferred it to my current GMC.  It stays in the garage most of the time, so hard for me to judge it's long term weather resistance.  It still works perfectly, been very durable.  It doesn't see oil patch usage, but it's not a mall queen.  It keeps most things mostly dry (small leaks) and the security of it is enough to slow someone down but not keep them out for long.  I would buy one again, it works for me.     
    • fm2176
      New to Me 2010 SLE (Quirks, Issues)

      By fm2176 · Posted

      Thanks to the convenience of Amazon, I was able to get a few things done to the truck today.  I installed Carquest Premium oil and air filters with five quarts of Mobil1 High Mileage 10-30 along with a quart of Pennzoil Platinum 5w-30 I already had.  The latch for the flip up center console lid was broken so I replaced it along with the power mirror switch.  I found my push retainer assortment this morning and reattached the plastic under the bumper and it was only held on with a few screws and retainers.  Then I programmed a new remote keyless entry fob so I can lock my dog in the truck when I take her out with me (I've got to keep the air going for her since it's been in the 100s).  Finally, I ordered some LED interior bulbs and replaced the reading lamps.  The front lights are working fine while one of the back lights only works intermittently and the other not at all.   While under the truck, I found the source of at least one of the noises: the sway bar links need replacing.  I ordered a set of Suspension Dudes links with Code Red bushings.  Never heard of them, but they're made in the USA and have decent reviews.  While making yet another Amazon order, I went ahead and added a set of front tow hooks.  I went with red, since that's the color of the sway bar link and bushings and it should look decent enough on a black and chrome truck.  Speaking of which, it doesn't bug me much, but the passenger side mirror has a chrome cap while the driver side doesn't, so eventually I'll make them match one way or another.  Oh, and I ordered a $20 TPMS reset tool.  No idea if it will do anything for my sensors but it was cheap and will work for the Ford Transit Connect as well.     For tradition's sake, I ordered a new oil change wrench.  I kept the Snap-On 9/16"x15mm GM wrench I bought when I was 18 in the 2006 GMC from the time I bought that truck until the truck was lost.  While I was tempted, there's no need to spend $80 for a new SO wrench, or even $50 with shipping for a used one on Ebay.  I just bought a Duratech 15mm extra-long ratcheting wrench to do the job as needed.  It works, and if I like that wrench enough, I'll buy the set.  
    • Another JR
      Multigate electrical problem

      By Another JR · Posted

      The recall is for exactly this issue - those drain holes combined with the limited environmental capability of the tailgate electronics card inside the tailgate were a problem. The “safety issue” was the potential for the tailgate to spontaneously open, but all kinds of tailgate misbehavior can occur from water contamination of that control card.    There is no real fix yet. The initial recall just disabled the tailgate. Later, when parts became available, they would replace bad parts with new parts of the same bad design. My dealer is going nuts because the few times I let them get their hands on my truck, my tailgate is off due to a slide-in camper installation. They really want to cut my tailgate wires, but I won’t give them the chance. I will let them get their dirty hands on it when a real fix (redesign) is available.  My tailgate, which works just fine with sealant plugging the drain holes, will remain safe in a dry storage crate until then.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...