De-catted Manifold: The results

Manifold it'll be genuine and 2nd hand wont be a problem - as long as its not buggered of course! I've never seen or heard of a 3rd party OE spec item hence it'll be genuine. If it was a Toyosport manifold (aftermarket, not OE spec) you woud have seen it was different to the OE item, to get it running right/at it's best, that would need a remap.