Last Minute Auto Wobble…Is i4 the right choice?

switchlanez

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So has it been explicitly stated this canned response from Lotus reps no longer holds true for US BE V6?

There is NO Petrol Particulate Filter on the V6 engine, it has three Cats though now, same as the US spec. The I4 AMG engine DOES have a PPF plus catalytic convertor.

I googled for any updates on gasoline particulate filter (GPF) US regulations and couldn't find any. Couple articles as recent as April 2022 stating US doesn't require GPFs and compares data to China and EU. And this:

Gasoline particulate filters are not expected to be widely adopted in North America, where particle emissions are regulated through mass-based PM limits only. The US Tier 3 PM limit of 3 mg/mi, as well as the 2025 California LEV III limit of 1 mg/mi will likely be met through in-cylinder control technologies.

I'd like to know if law has changed recently but can't find it.
 

switchlanez

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Got an answer from Lotus asking whether the BE V6 exhaust will have no particulate filter like the FE:
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