'12 LFX Cat Delete

[BNB]

If you remove rear cats you will not get a CEL


Sent from the front seat of the Amberlamps!

[cliffdog89]

Enjoyed reading through this thread, I just picked up the solo hfc used from a forum member. How much additional HP do you think a cat delete would gain over the hfc?

[simt3k]

Any vids of the cat delete on the LFX?

[LS3 Handler]

I could be wrong but I thought the LFX only had two cats before the o2 sensors. The way I saw it is a pipe from the head, a cat, then a resonator, the H connector, another resonator before the rear axle and then the mufflers. Can anyone verify if these cars have a total of two cats or four?

[SgtPickles69]

Originally Posted by V6 LS Supercar

I could be wrong but I thought the LFX only had two cats before the o2 sensors. The way I saw it is a pipe from the head, a cat, then a resonator, the H connector, another resonator before the rear axle and then the mufflers. Can anyone verify if these cars have a total of two cats or four?

They have a total of four. Two big ones and two smaller ones.
So it's:
Big cat > O2 sensor > little cat > H-pipe > resonator > muffler

Here's a pic of the smaller one.

[LS3 Handler]

Ahh it sounds like I need to ditch the back two after o2 sensor