Well i thought i would go to the exhaust shop where i got my exhuast, and put a cat on the exhaust to stop tha popin...the guy that installed it said there is no need because to turbo make the back pressure,,so i ask him why it pops..he said it might be tha sparks plugs or something with tha o2...wats up with that?...he said i need o2 sensors maybe..r they expensive and were can i buy them..and is it something other then that o2 sensors...cuz when i step on full throttle it starts to pop and i lose performance..likes its popin out tha boost

any info will be cool

 

well what kinda car you got?

 

You are right. Info would be cool.

You can start by telling us what year, model and engine and mileage you have an what modifications you have made, and what exhaust you put on your car, and when you removed the cat where you put the oxygen sensors.

It sounds like you are running very rich and your car is backfiring. Not good. Do you have any check engine light? Have you checked for codes? When were the spark plugs or air filter last changed? What kind of gas mileage are you getting? My recollection is that the oxygen sensors are attached to the catalytic converter, so where are your oxygen sensors attached?

Do us and the environment a favor and put the cat back on.