Thread: Cat Rattle
View Single Post
Old 01-31-2011, 11:21 AM
jjklongisland's Avatar
jjklongisland jjklongisland is offline
Dodge Ram Forum Senior Member
Join Date: Jan 2011
Location: Long Island, NY
Age: 36
Posts: 93
Gender: Male
Vehicle: 1997 Dodge Ram 2500 V10
Color: Green/Silver
Engine: 1994-2001 488ci (8.0L) LA V10 300 hp 450lb/ft
Rep Power: 0
jjklongisland is on a distinguished road

Originally Posted by RamTech View Post
Your truck has 4 O2 sensors. I'm surprised you don't have a MIL lamp on with a rattling cat at this point. Hollowing out the cat's may provide a minor performance increase but I doubt you'll hear a big difference in the exhaust tone. Gutting the cats can cause a MIL to come on but there are ways to fool the PCM into thinking it's there.

Thanks for the info, now if the 02 sensors are prior to the Cat then how will it throw the the code? My main focus is to just reduce the rattle at this point. Some people have said removing the cat increased fuel mileage but I think its most likely negligible.
Reply With Quote