Catalytic converter help...

[Charlie207]

So it turned out to be a bad catalytic converter. I ended up replacing them both with flowmaster high flow cats... She's running like a champ now!

How did the coverter matrix not blow out of the tailpipe?

 

[AmunRoo]

How did the coverter matrix not blow out of the tailpipe?

That is definitely a good question. I was wondering the same thing myself but I think that some stuff did make it down into the muffler. Either way, it's an excuse to buy a new muffler!

 

[AmunRoo]

sell them it's worth some $$$$

Where do I sell them?

 

[BG1988]

Where do I sell them?

ebay CL

 

[Meccanoble]

Just curious where and how much you pay for your cats? Doesnt the truck have 3 cats? 2 on the y pipes and 1 on the back of the same exhaust pipe?

 

[Charlie207]

Just curious where and how much you pay for your cats? Doesnt the truck have 3 cats? 2 on the y pipes and 1 on the back of the same exhaust pipe?

That's how mine is.

Or, two cats too many.

 

[Meccanoble]

Put a tape around it and measure or look up by application. I replaced my Y-Pipe and cats with Magnaflow. Cheap, Chicom cats don't last a year.

Which Magnaflow did you go with?

 

[swathdiver]

Which Magnaflow did you go with?

The part number is 51578.

 

[Meccanoble]

The part number is 51578.

THANK YOU! I seen another that came up that is also compatible with our trucks. Much cheaper. Any reason I should go for the 51578? Here are details:

Model 51578

Magnaflow 51578 | CADILLAC ESCALADE, CHEVROLET AVALANCHE/SUBURBAN 1500/TAHOE/SILVERADO 1500, GMC SIERRA 1500/YUKON/YUKON XL 1500 | 4.8L/5.3L/6L.6,2L | Catalytic Converter-Direct Fit | OEM Grade EPA

Magnaflow 51578 | CADILLAC ESCALADE, CHEVROLET AVALANCHE/SUBURBAN 1500/TAHOE/SILVERADO 1500, GMC SIERRA 1500/YUKON/YUKON XL 1500 | 4.8L/5.3L/6L.6,2L | Catalytic Converter-Direct Fit | OEM Grade EPA

www.hottexhaust.com

Magnaflow 51578 | CADILLAC ESCALADE, CHEVROLET AVALANCHE/SUBURBAN 1500/TAHOE/SILVERADO 1500, GMC SIERRA 1500/YUKON/YUKON XL 1500 | 4.8L/5.3L/6L.6,2L | Catalytic Converter-Direct Fit | OEM Grade EPA​

$1,070.30$1,013.00


or

Cadillac Escalade | Chevrolet Avalanche/Suburban 1500/Tahoe/Silverado 1500 | GMC Sierra 1500/Yukon/Yukon XL 1500 | 4.8L, 5.3L, 6L, 6.2L | 4WD | Catalytic Converter-Direct Fit | OEM Grade EPA

Cadillac Escalade | Chevrolet Avalanche/Suburban 1500/Tahoe/Silverado 1500 | GMC Sierra 1500/Yukon/Yukon XL 1500 | 4.8L, 5.3L, 6L, 6.2L | 4WD | Catalytic Converter-Direct Fit | OEM Grade EPA

www.hottexhaust.com

Cadillac Escalade | Chevrolet Avalanche/Suburban 1500/Tahoe/Silverado 1500 | GMC Sierra 1500/Yukon/Yukon XL 1500 | 4.8L, 5.3L, 6L, 6.2L | 4WD | Catalytic Converter-Direct Fit | OEM Grade EPA​

$1,127.83$897.77

 

[Meccanoble]

The Sku for the cheaper one is SKU: 11451578, interestin that it has the 51578 in the sku.