MIL Eliminator needed with a Hi-Flo cat?

[Chewbacca]

I'm going to be getting a 2.5" Apex downpipe with a high-flow catalytic converter... But I am curious... Would the CEL come on even with a high-flow cat? Will I need a MIL eliminator?

[StreakinOraNgeX]

It all depends on where the 02 sensor would be mounted. If it is mounted behind the hi flo cat, then you wont get a cel but if it is infront it will.

[122 Vega]

Just mount the sensor behind the cat. I have a CS exhaust with a Vibrant cat and no CEL.

Britt

[warrier04]

i didn't think a mil eliminator was needed at all w/ a hi-flow cat in place (especially on the apex pipe).

[jeffmsp]

no light with my universal high flow 2.5" and exhaust mods in sig :)

[Chewbacca]

Good to know... Thanks for all the quick responses!

[Swerny]

Put the O2 sensor after the cat, no CEL, unless you cook your cat.
I have a cat on my Corksport exhaust, no CEL.

[weirdzen]

Put the O2 sensor after the cat, no CEL, unless you cook your cat.
I have a cat on my Corksport exhaust, no CEL.
Did you just bring your car to a local exhaust shop to put the Cat on? How much did it run you?

[Swerny]

Did you just bring your car to a local exhaust shop to put the Cat on? How much did it run you?
I went to Essential Speed, bought the cat and had it installed with an O2 bung for about $200 Canadian, parts and labour. Also extended the O2 sensor wires, fixed a leak etc etc.

[jrodhotrod]

I have been running my ION exhaust with high flow cat for a long time and no CEL :D