02 2.5 Exhaust manifold and header

[livewire88]

Ok people my first question is, has anyone had a problem with the exhaust manifold cracking? Second if I put a header on the car will it cause my ses light to stay on.

2002 Nissan SpecV SE-RThe High Idle Motor

[nametakennow]

I have heard of precat disintegration, but not manifold cracking.

There are two very easy ways to not have the light go on.

This has been discussed at length many times, so I'll link a thread to you... zerothread/305084

[PacoBJuarez]

Yup, you have to either move the 2nd O2 sensor behind the cat or use a spark plug defouler.