Need Help With Cutout

[BlueGXP]

I need some recommendations on what to do with a cutout i bought for my 2007 Grand Prix GXP. I know a lot of the people who have done this to a gxp takes out the cats but i need some help on what to do with the o2 sensors. The only other place to put it is after the res. but i find that to be pointless. Just some help with the o2 sensors for deleting the cat would be appreciated! Thanks!

 

[real diehl]

Seems like you're cramming a lot of stuff in a 4' section.

I'd go catless, put the cut out in right after the curve on the downpipe after the firewall, and relocate the o2 sensors if necessary.

 

[BlueGXP]

Where would i relocate the 02 sensor to without getting a check engine light

 

[boostedcompg]

The cutout itself is pretty useless....just out it where ever. Your gains will be minmal either way

 

[Bio248]

and it'll sound like ****.

 

[f3racer]

i wouldnt worry about a cutout unless you have other stuff done to it as well. tune the o2 sensors out and you dont have to worry about it period. there is only one cat. cut it out.
i went catless and i dont have mufflers either. just the resonator. sounds phenominal and only cost me 40 bucks.

 

[joshv]

i still have a cat for legal reasons here in canada, but my cutout is right b4 it and it sounds amazing here is a clip check the video out 2005 grand prix GXP turbo - YouTube

in my opinion sounds really good... i will take a picture of were is is tomorrow and can show you

 

[real diehl]

i wouldnt worry about a cutout unless you have other stuff done to it as well. tune the o2 sensors out and you dont have to worry about it period. there is only one cat. cut it out.
i went catless and i dont have mufflers either. just the resonator. sounds phenominal and only cost me 40 bucks.

Without a cutout, I would go this route.

ASSuming you can do it and pass emissions...but with a tuner you can set rear-o2 codes to "no report"