Shouldn't surprise anyone, this gen was based on the STi, so ej207 based engine makes sense since Prodrive/STi/VSC had years of experience developing it for rally and NBR cars.
Curious what the 2024 cars use, they are based on VB.
I guess it still makes sense, ARA rules haven't changed much YoY so the same engine is competitive. And subaru doesn't treat ARA as a proving ground for new engine tech so no factory backed racing engine for this.
The new NBR car uses a modified FA24 with single scroll for 380hp/590Nm but it's got a 39mm restrictor against ARA's 30mm. Hopefully they will sell the NBR's beefier front control arms and 6pot brakes as an option for VB.
I figured castings would still be in production given that IAG/Outfront still offer shortblocks off new oem castings. Also I think the jdm STi had ej207 till '21.
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