Rep Power: 0

I'm concerned about dashboard errors from using non-Honda exhaust manifold. (Aftermarket w/o heatshields $299 Honda part $495)

Is there a concensus on which aftermarket brand does the best job without causing new problems?

And should I do the o2 sensors also?

 
Rep Power: 0

I used a Dorman header/cat. converter on a D16Y7. Been running for over a year with no problems. I did not change the O2 sensors.

 
Rep Power: 203

+Infinity

Same here.

 
Rep Power: 0

As long as its a good seal on the head and the cat you will be fine.