Originally Posted by pcfreak4
You’re gonna need a racing header from RRE with rear O2 spacers or a tune (these are in very limited or not even in production now), new manifold from Mitsubishi to stay road legal and not require a tune, or gut your current manifold and use rear O2 spacers or a tune
Don’t get one of those cheap eBay Chinese manifolds, they don’t have the correct front O2 bungs
One one of these options we can recommend for road legal emissions compliant use, replacing it with a brand new manifold with cats
Can you send me a link for the Headers?