LB7: Catalytic Converter

[pappyspal]

Will I gain anything by just taking off the cat converter? I dont want to do anything else but take the cat converter off. I was told there would be a 30hp gain. True or false? The only other thing that has been done is a cold air intake.

 

[TROJAN366]

idk about 30hp but you should pick up a few hp and lower egts a little bit. The more you have done to the truck the more you will gain by ditching the cat.

 

[Chevy1925]

you will notice no seat of the pants increase in power, your exhaust will stink more, and your EGTs will see a slight drop.

 

[TROJAN366]

you will notice no seat of the pants increase in power, your exhaust will stink more, and your EGTs will see a slight drop.

How do you know he isn't running duel fuelers, big sticks and twins through a stock cat?

 

[pappyspal]

I'm a diesel dummy. I dont understand what is EGT's mean. Just wanted to know what if any benefits would be from taking the cat off. I have a 2004 GMC 2500HD. Just han new intectors put in last week. Has 137,000 miles on it.

 

[TROJAN366]

EGT is exhaust gas temperature. If the truck is all stockthen you shouldn't have any issues with leaving the cat in. You might make a few more horsepower when strapped to a dyno and the EGTs might drop a few degrees but the gains will be minimal and you most likely won't even notice a change. Plus once you cut the cat out you're more likely to have exhaust leaks down the road etc.

 

[pappyspal]

Thanks Trojan. That sums it up. I'm gona leave the cat in place and just drive it.:thumb:

 

[Chevy1925]

How do you know he isn't running duel fuelers, big sticks and twins through a stock cat?

he wouldnt be asking about a cat removal if he knew that much. come on now!

 

[TROJAN366]

he wouldnt be asking about a cat removal if he knew that much. come on now!

lol no sir. I would hope not.