Hi , my 98 camaro has has the factory cats , can i striaght pipe the exhaust without have any problems , will i have to have the computer tuned , will the computer start throwing codes , or should i replace with new ones . The car has two one on each side , the o2 sensors are up stream , there are no o2 sensors down stream .Any imformation will be great .Thanks

 

You should have 4. If the ones after the cats have already been removed and you aren't getting any codes, then.........

 

Yeah just straight pipe it, you should get it tuned it will throw codes. OR get headers and get a good tuner to dyno tune the car.