Ni hao pungyou(or Hi guys), Hope someone can clear up some confusion I appear to be having regarding YB exhaust manifolds. I see ads for 2wd Cossies with '4x4 exhaust manifold fitted' and others for 4be's with 2wd exhaust manifolds fitted!

Does this mean that a 2wd will run better on a 4x4 manifold and therefore a 4x4 better on a 2wd one? Or is this just hype?

Also whilst on the subject is a tubular better than a cast manifold? Xie xie ne (thanks) in advance!!

I asked Confucius but he was a confused as me !!!