A k04-02? can flow enough for 300bhp, it does need ALL the supporting mods to allow it to breathe effectively and not become a heat pump with egt's through the roof. The o.e manifold has long been the bottleneck in the ko4-02x turbo, the introduction of an affordable well designed tubular manifold(although it's a p.i.t.a to fit) coupled with the superb 80mm badger 5 tip will see these results replicated again I'm sure. The last 6 months have seen a major jump in unleashing the potential of the k04! It's also worth remembering Toby has the agu engine with the large port cylinder head along with a slightly higher than amk/bam compression ratio! This all helps!
If Toby's happy to I will get his car on the dyno Saturday to see what's what. I'm 100% confident it will make a repeatable 295-305bhp.