This setup is going to provide the best iat for sure but when I dyno tested a similar one (plenum with 100mm hose, cut radiator and even no filter) i got good power until 4000rmp but then the power dropped. To my understanding it needs more air volume so a much bigger airbox, like the M3 one which is massive. The noise with the airbox was also significantly less making a very streetable setup for those that need to keep it quiet. The filter placement also I think will be an issue when driving fast with rain. What I ended up with at the end was a solution from the AE86 N2 cars, a 100mm hose at the front feeding air a BIG sealed box inside the engine bay and I still use the Jenvey dome filter over the ITBs. Works really well for me, inside and outside of the track. You can find my itb dyno testing at my channel if interested.

Nice Update! One question regarding the position of the filter. How do you avoid sucking water through the filter into the system. I saw different "ram air" solutions which are working fine in dry conditions but have a lot of problems in the rain. Wet filters and even water in the air intake are the results. Thanks and best regards Tom

Mit welcher Leistungssteigerung kann man denn rechnen für NA, NB, NC und ND mit den ITBs?

Do you use a re-route kit on your cars? Or is your radiator efficient enough that you don't need a re-route? Very interesting project so far👌

Any updates on the ND itb project??