Slick I hear you.
The original standard turbo manifold is the weak link on the 1.8t especially the AMK / BAM high output units. They crack easy as my mate Who did my interior has done (MJ) he is getting a better item shipped over from the states and it's on my shopping list too. Flow is not the best on standard either
But it's important not to magnify the issue by fitting a restrictive or smaller Downpipe and exhaust than what the donor car had, hence why I said in my original post a Downpipe and full exhaust will be needed (at least 2.5" from turbo back and good quality parts as you said yourself hence jetex for the exhaust and trqckslag who made my custom Downpipe)
Any less size bore than this is below what the manufacturer designed for the engines and if that was ok why didn't they fit smaller bore from the factory. I mean it's not like they don't spend ££££ developing their systems is it ?
It's laughable what Damon spouts, i thought Danny had done a 1.8t for £500 ??

go away and stick to your ABF conversions as you are out of your league here