LALEX1

iTrader: (22)

What does everybody think about me removing my catalytic converters. I have a supercharged 2002 gs430 and I waited about 1 month after installing my sc and larger injectors to install my piggyback. Well it turns out I killed my cats.
Will there be a significant gain by me removing my cats?
Will the car get a lot louder?
How can I fool the o2 sensors so that my check engine light isn't on.
I currently have 2 codes p0420 and p0430 (due to my bad cats)

Emissions is not an issue.
Also I have ppe headers.

Any advice would be appreciated

CTGS

I just had both cats installed and it wasn't cheap...how are u going to pass emissions?

kingof901s

iTrader: (1)

u have to buy a o2sim and install it in ur ECU to make the CEL turn off. I have a header for my GS300 thats how i got rid of the CEL.

LALEX1

iTrader: (22)

i've decided to install 2 high flow cats and delete the 3rd cat.
Figured this was my best option.