Has anyone upgraded their turbo inlet pipe on the F26 M40i?

I have a PS2, Dorch stage 2 HPFP, all the other ordinary bolt ons, and I'm running out of air at ~425 WHP. I cannot find a turbo inlet pipe anywhere.

Mst-performance has it

https://www.ftpmotorsport.com.tw/products/ftp-bmw-640-740-n55-inlet-pipe-f12f13f01f02f06-13717605586

The 6/7 series is the same part other than the coolant hose clips; However I think the gradual increase in the stock still flows better.

This might be of help.

https://www.kiesmotorsports.com/products/ftp-bmw-f25-x3-f26-x4-35i-n55-charge-pipe-boost-pipe?utm_source=Klaviyo&utm_medium=flow&_kx=wQcXEVFfVuAIEob70Gwmf3feeLOw4EaC6HOdLVF95Kk=.UjH5JZ