Jump to content

Recommended Posts

Posted

I want to swap mufflers. At least I think I want to swap mufflers on my 2020 2500 gasser. Looking at Flowmaster 50 HD. Does anyone have experience with this muffler or have other opinions?

 

Also... does anyone know about warranty issues with swapping just the muffler, leaving Cat intact. 

Posted

Sorry, not on a v-8, but had a 30 with a mandrel bent exhaust on my old 4.0 grand cherokee. It was too loud, so I sold the 40 and went to a 50. Nice sounding idle. Louder than stock, but not as obnoxious as the 40. That rolled pipe was probably better for any performance gain on that vehicle, than any difference from a 50 to 40.

Posted

https://r.tapatalk.com/shareLink/topic?url=https://www.gm-trucks.com/forums/topic/238565-my-upfitting/?do=findComment&comment=2418479&share_tid=238565&share_pid=2418479&share_fid=33003&share_type=t&link_source=app

Monday the exhaust disappeared
Did the flowmaster 817933
It is quite aggressive just alittle less bite then no exhaust
FYI if u have built in fifth wheel package u will have to cut and weld the driver side to fit.
Left the tail pipes off for now not sure what I'm gonna do with them yet
dd704fb3d930c94f6bd7bdaf5f9b846b.jpg
74f261f91c085a93252f3288c1bd811d.jpg
And yesterday the 305 70 18s went on
Alignment was right on from the factory
cefb61b78a6dec2310da24bfc30b57a6.jpg
41125513f889daf06bfba3803b9e7516.jpg
70306a88454d25a346089e029131f8ff.jpg
c61416fadc6109d5e83b21a1643cdd1e.jpg
e1355106587beffacc9cd047f1481af6.jpg
1ed4bc1cb33b086989dac317684b5b2b.jpg
 
 
Still have to finish
Splash guards
Tailgate bar
Plow mount
 
Sent from my Moto Z (2) using Tapatalk
 
 
 
 
 
 
 
 
 
 
 
 


Sent from my Moto Z (2) using Tapatalk

  • 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
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,760
    Total Members
    8,960
    Most Online
    MASONV88888888
    Newest Member
    MASONV88888888
    Joined
  • Who's Online   2 Members, 0 Anonymous, 1,509 Guests (See full list)

  • Latest Articles

  • Posts

    • My 2025 Silverado 1500 had to receive a brand-new engine (long block) under warranty last month at only around 16,500 miles. Before the replacement, the truck repeatedly displayed "Engine Oil Level Low" warnings, even though the Oil Life Monitor still showed around 50% remaining after about 6,000 miles since my last oil change. After seeing the warning several times, I checked the dipstick with the engine cold, and the oil level was completely normal. The next day, the message escalated to "Add Engine Oil." At first, I assumed it was just a faulty oil level sensor, so I brought the truck to the dealership. After inspecting the engine, they found internal cylinder wall scoring and ultimately replaced the entire long block under warranty. Before this happened, I was planning to install a 4-inch lift and suspension upgrade on my truck. After needing a new engine at just 16,500 miles, I honestly don't see the point anymore. I also contacted GM to ask whether my vehicle qualified for a buyback, but I was informed that it does not at this time. Anyway, this experience has left me with serious concerns about the long-term reliability of this engine. I sincerely hope NHTSA expands the current investigation or recall to include 2025 model and performs a thorough inspection of affected vehicles. My biggest concern is that these engines may fail shortly after the powertrain warranty expires. If GM truly stands behind this engine, then at the very least, please consider extending the powertrain warranty to 10 years for affected owners. That would go a long way toward restoring customer confidence.
    • Without exception but then I'm the odd duck, right? I know what goes into that test, how it is calculated and thus how to beat it. But EPA values are often not beaten by the general public and the government has in past years adjusted the means and methods to come to those values to more closely approximate "Joe Average".    The only real trick to beating that EPA average is don't drive like "Joe Average".    It's the same method you used to profit from "Economic Migration" and in doing so beat the 'stats'. But you, like me, are not "Joe Average".     The thing you don't seem to grasp is this "Purchasing Power Index" isn't forward looking. It doesn't predict what it going to be but looks backward and states what it was. They are not telling us what the THINK, they are telling us what they MEASURED. Example:    Wife says "I'm going to lose 40 pounds by Christmas". May she does, maybe she doesn't but the doctors office who weighed her when she made that statement and again at Christmas only REPORTS what the RESULT was. You and I can banter about what was possible and what aunt Tilly did till the cows come home but the result is the result. Arguing otherwise is.....irrational. That's all I'm saying. This isn't about:      What you are calling a 'Statistic' is a RESULT not a CALCUATION and as a result the RULE. Like gravity as a rule, it can not be broken. 
    • Just wanted to say thank you for posting this. Years later, your thread is still helping Silverado owners.   I bought my 2025 Silverado 1500 in January 2025, and I've had what feels like the exact same rattle since day one. After reading your findings, I believe my truck has the same issue with the cable carrier contacting the rear sliding window. To be honest, I had pretty much given up on pursuing the issue. It wasn't until I recently drove another brand's pickup that I realized just how quiet their cabin was—and how noisy mine has been all along. On my truck, the rattle happens on almost any paved road, gets even worse on rougher pavement, and I can even hear it during braking and acceleration.   I actually referenced your thread when submitting my case to GM, hoping they'll recognize this as a recurring issue instead of treating it as an isolated incident. The reason I reached out to GM first is because my dealership told me they would need to keep the truck for at least two days just to diagnose the problem. I was concerned that even after two days, they still might not be able to identify the source of the rattle before giving the truck back to me. I had also asked a few dealerships about this issue during previous service visits, but none of them seemed to know what was causing it or had a solution. That's why I decided to contact GM directly first, hoping they might already have an official repair procedure or guidance for this issue.   I also hope GM eventually comes up with an official fix for this problem. I have a feeling there are many Silverado owners experiencing the same rattle, but most either choose to live with it or simply don't know what the cause is.   Really appreciate you taking the time to document your diagnosis. Your post is still making a difference years later.
    • I have 2 choices. 
    • Do you have access to BP fuels? Some stations have Silver 91 E-0 priced the same as their 93 E-10.  There is a local Marathon with 90 alky free for $6 a gallon but I go down the road to BP for $5-ish. They also have a 100 E-0 but that stuff is $10 a pop. 
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...