Cat back vs. deleting cat [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Cat back vs. deleting cat


Jud Williams
07-18-2005, 01:34 PM
2004.5LLY
Have read many threads on this still have questions. I know about EGR blocker and finger stick

Is there any performance benefit from removing the cat/vs cat back system?
Is EGT lower without the cat and with front pipe??
better flow rate/more response without cat and with front pipe?


Just got edge juice attitude and it rocks on level3!

DSTRBD
07-18-2005, 02:29 PM
Removing the cat will give you quicker spool-up and lower your egt's about 50*.