aaron653

iTrader: (1)

i took a picture of a true dual setup to this exhaust shop in town and he said that I need cats because it will mess up the computer without them. Wont it just turn the ses light on?(btw my ses light stays on all the time anyway)

uLs1a

iTrader: (22)

It will mess up the computer, it will throw an SES light, but if you get a tune and get o2 sims you will be fine

MISERICORDIA

iTrader: (6)

Your car will be just fine without them. It will turn on the ses light but if yours is already on I wouldn't worry about it.

~JOSHUA

iTrader: (92)

The front o2's are for testing the emmission output, the rears are to keep the cats alive. If it has an issue with the rear sensors the computer will compensate by dumping fuel to cool the exhaust temps to not fry the cats. You will get crummy fuel economy.

Get the rear cats programmed out or use O2 simulators. available from sponsors==>