Cat delete?

[yariSB86]

when either removing the cat converter or having an aftermarket mid pipe that does not have a cat, what kind of tuning do i need to tell the ecu o2 sensor to not freak out? and what kind of shop should be able to do this?

[cali yaris]

Using our midpipe (either Nitto or the incoming Megan Racing), no tuning was necessary. An O2 anti-fouler kit keeps away the CELs.

And the Yaris has TWO cats, just FYI.

[yariSB86]

Thanks for the response Garm! When are the Megan mid pipes coming in?

[cali yaris]

we're supposed to have one for test fitment soon, maybe next week.

[YAR1S]

dont you need a cat to pass emissions.... they look for them here....

[packetrace]

Using our midpipe (either Nitto or the incoming Megan Racing), no tuning was necessary. An O2 anti-fouler kit keeps away the CELs.

And the Yaris has TWO cats, just FYI.

we got two cat ? and a resonator ??

[cali yaris]

How much are you expecting those to run?

not sure yet, maybe $150 range?

dont you need a cat to pass emissions....

yes in California for sure!

we got two cat ? and a resonator ??

yep goes like this from the head:

header (with sensor) > midpiping > cat > sensor > cat > resonator > axle-back exhaust (muffler and tip)

[yariSB86]

learn something new every day. thanks for the education lesson Garm.

[detroiter]

Have to love places like here in Michigan. No inspections and no emissions :D


Can't even tell you some of the rediculous things I've seen on the streets that in no way could pull it off
in other states with inspections/emissions.

[OTA'sTOY]

^ same here on the big island Hawaii they only worry about tint being too dark

[Qmobile]

header (with sensor) > midpiping > cat > sensor > cat > resonator > axle-back exhaust (muffler and tip)

Dang they want our cars to be quiet and the pipes to be restrictive. Wonder has anyone on here replaced/removed one of the cats any or the resonator