how much hp can be lost due to a bad cat. the cat was starting to break up and had debris in the mesh.

 

just gut them or go catless

wait it's a LS1 dont drop the cat's gut or get hi-flows

 

i dont have deaders, no point to get hi-flows now. i will do that when i get headers. i was just speaking in terms of stock. i had a faulty one cause it was breaking apart and they fixed it under warrenty. but it feels a bit peppier and i just wanted to know if it was me, or if the bad cat was slowing the car down.

 

From what i have heard, bad cats can cause lots of problems. Such as cars not shifting right, accelerating extremly slowly, only reving to a certain point, and huge power losses. Wether or not this is to the point yours were, i dont know. If yours was blowing out, it may have been similar to a gutted cat, which could have slightly increased power. Who knows.

 

mine wasnt blowing out. it was breaking apart and clogging th screen. im pretty sure it was effecting power as now it as a lot more on the low end. i could never just hit the gas and kick the rear out. now i can.