2002 Suburban K2500
I have a 2002 Suburban K2500 with the 8.1L engine. The muffler has developed a few holes in it. I temporarily patched it with a piece of sheet metal, pop rivets, and hi-temp RTV. The pipes seem in ...
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Hi Steve, muffler has been problem-free so far. I did a ton of research on this, and you can't buy just the muffler from GM parts...it comes as part of an "assembly" that includes the front pipe, one of the catalytic converters, etc and the dealer price is $2000! Everything aftermarket was a "performance" exhaust and my biggest fear was getting a drone in the cabin while towing.
Finally decided on the FloPro 2506. Was $150 shipped, and it cost me another $150 to have the local exhaust shop weld it on. I even talked to the local shop for advice before ordering the FloPro, and he said that mufflers perform differently depending on the vehicle. A muffler on vehicle A may be fine but may drone if installed on Vehicle B. So while he had done installs on other 8.1 trucks, he had never done an 8.1 Suburban, and couldn't guarantee how the same muffler would perform.
If you scroll down to the bottom of the Flo Pro page in the link, they have a sound level chart. The mufflers that fit the 8.1 come in a few different sound levels, the 2500 is the one they are saying is the "stock" sound level, the 2506 is a little louder, the 2505 is the loudest.
I was also concerned that it's not stainless, and would have preferred a stainless unit, but more important to me that it be quiet when towing. So far it's held up well, and I'll likely get another of the same when it's time.
I was also looking for something that was a direct fit since I planned on installing it myself, but once the new arrived and I saw the SIZE and weight of the muffler, I decided that changing was a job for a guy with a LIFT!
Finally decided on the FloPro 2506. Was $150 shipped, and it cost me another $150 to have the local exhaust shop weld it on. I even talked to the local shop for advice before ordering the FloPro, and he said that mufflers perform differently depending on the vehicle. A muffler on vehicle A may be fine but may drone if installed on Vehicle B. So while he had done installs on other 8.1 trucks, he had never done an 8.1 Suburban, and couldn't guarantee how the same muffler would perform.
If you scroll down to the bottom of the Flo Pro page in the link, they have a sound level chart. The mufflers that fit the 8.1 come in a few different sound levels, the 2500 is the one they are saying is the "stock" sound level, the 2506 is a little louder, the 2505 is the loudest.
I was also concerned that it's not stainless, and would have preferred a stainless unit, but more important to me that it be quiet when towing. So far it's held up well, and I'll likely get another of the same when it's time.
I was also looking for something that was a direct fit since I planned on installing it myself, but once the new arrived and I saw the SIZE and weight of the muffler, I decided that changing was a job for a guy with a LIFT!
