Quote:
Originally Posted by Tyandriel
with many, many thanks to user fax0815 from the german toyota forum for shooting the pic and giving me the permission to post here:
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That's fantastic to see a proper underhood picture.
The "mystery plumbing" wrapping around the driver-side of the intake is a sound tube to plumb specifically tuned tones through the firewall. This is nothing new as madfast pointed out; the Mustang, VW GTI, and most BMW's do this. This type of sound engineering solution was first introduced in the 1st gen BMW Z4 back in the early 2000's.
Speaking of induction sound, the black polygon box between the intake tube post air-filter and the oil filter looks to be another acoustic resonance tuning enclosure. It'll cancel out certain frequencies and augment others, to tailor the sound and/or improve wavefront formation going into the intake manifold.
The oil filter looks to be in a very convenient location; hopefully it has a check-valve like current VW gas engine oil filters, making oil changes super easy and non-messy.
I do wonder what the black plastic box is in front of the alternator. It'll be interesting to see if the strut tower brace makes its way to production, or if it'll be an accessory.
Good stuff. I wanna see more!