i already used the search to find installation help...Here is the deal....a friend of mine gave me a dc sport exhaust manifold...i know how to bolt it up....yes it will sound like @ss because i will be eliminating the cat...the problem is i dont know what to do about my o2 sensor???? im stumped... help
tim

forgot....my car is a 2000 hatchback....d16y7

O2 sensor no cat say hello to check engine light

forgot....my car is a 2000 hatchback....d16y7
You need to get a cat from a Civic EX.

uhh . . . is that your primary o2 sensor? You can always slap it on the header if it has a place, or yo can get an o2 simulator since I know that the 96-00 civics are obd2 and have 2 o2 sensors. You can also take the header down to a shop, have them drill a hole in the header or the downpipe of the ehader, and weld in a o2 bung for maybe like $30 and slap the o2 sensor in there. Couple options for yah :)