Originally Posted by
vroooom ptssssh
No, turbo's only rated for 850, anything over 700 I think he'd be well chuffed with, but everything's 'capable' of doing 800

So why such a large TB and plumbing ?
3" IC plumbing is easily capable of 800bhp. 4" IC plumbing is a bit mental unless it was riddled with bends.
A 65-70mm TB is capable of 800.
I certainly wont argue about exhaust size, because bigger is certainly better when it comes to that aspect on a turbo car.
But a 4" exhaust would have been ample for 800 ( or more )