b16/b18a header questions??

ok i got my new b16 in my car and is stock and i have a header on my b18 will it work for the b16??
thanks
justin

Yes it will bolt up to your head without a problem, but It might not reach your cat. It all depends on the year of your car.

i left my b16 header on cuz it had the sensor on it, plus it was 4-2-1, instead of that 165k b18a 4-1 header.