Does a cat delete send into limp mode

[714s650]

I know the best route is go headers but I’m trying to get some few hp increases while giving a “ stock “ look

Read online that a cat delete without a tune will send the car into limp mode.
I just wanted to know if anyone had gone catless and what their experience was like after

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[Ninjak]

I have not done this, going ctaless on the stock headers, but I would say you would receive an error without a tune to handle the O2s

It has been said you can purchase some type of O2 delete device? But I have not pursued that option.

 

[jbrnigan]

Horse power gain is marginal - at best - the bigger issue is .... if you live in a state that requires an inspection for annual registration, you're registration can / will be denied and in the extreme you can be fined for the cat delete. If an ispection is required for an ownership change, you will need to reinstall the cat and lastly, a dealership will not accept a vehicle without a cat on a trade .... For a street driven car - bad idea FWIW

 

[robvas]

No it does not send the car into limp mode

 

[Sf22giants]

If you delete the cats and change nothing else, you’ll get a check engine light. You’ll need to run O2 defoulers to avoid that. You won’t run into limp mode with this option.

You can also have the car tuned after installing catless headers and the tuner will ensure the check engine light issue is addressed. You also won’t run into limp mode with this option.

 

[2015 Silver GT]

You can also have the car tuned after installing catless headers and the tuner will ensure the check engine light issue is addressed.

Are you suggesting a tuner is going to commit a federal crime by shutting off the rear O2’s?

 

[Q6543]

I don’t even think the software companies allow the parameters for that to be touched now.

so defoulers

 

[REV745DH24]

I know the best route is go headers but I’m trying to get some few hp increases while giving a “ stock “ look

Read online that a cat delete without a tune will send the car into limp mode.
I just wanted to know if anyone had gone catless and what their experience was like after

 

[REV745DH24]

If you are living in California, the restrictions are there that you can’t have catless due to California smog regulations! So if I am wrong then check out with the emission rulers and see what they say about catless is your best choice or either move out to another state where you could go catless!

 

[Sf22giants]

Are you suggesting a tuner is going to commit a federal crime by shutting off the rear O2’s?

I suggest a person talk to whatever tuner they choose to use and do exactly as they instruct.

Not uncommon to turn off rear o2s on S550s, as you likely already know, assuming your username reflects your car ownership history.

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