Eventuri carbon fibre turbo inlets for the BMW F90 M5 and F92 M8 optimise the flow path of air all the way to the turbos. This is a perfect addition to the Eventuri V2 intake system or as a stand-alone upgrade. Testing shows these turbo inlet pipes reduce 60-130mph times by 0.12 seconds. This is due to the Eventuri inlet pipes having a larger volume than the stock inlets by maintaining a larger diameter all the way to the turbos. The stock inlets narrow down immediately after the connection to the intake which creates a restriction, especially at higher boost levels. Eventuri's engineers have alleviated this restriction and also designed the curvature to be as smooth as possible allowing the turbos to reach peak boost sooner.
These inlet pipes are simple to install at home. See the dedicated in-depth install guide here.