GR Yaris Why the GR Yaris Engine Has Started to Break | Mike Fernie & Whifbitz

Interesting video but very much a clickbait title, considering they even stated that they're usually rock solid as well. Wonder where it was that tuned it though?
 
I thought it was interesting... especially as he walked away wanting a Gr Yaris!!
 
Speculating that it’s probably a dodgy tune from a rival tuner but unable to substantiate or quantify đŸ˜‚. Interesting deep delve into the engine innards though even if it was very much a clickbait title.
 
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A lot of speculation going on there.
Piston ring gaps again? So, a company like Toyota have got this wrong, FFS.
What about the valve head, not a mention or did I miss it.
 
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