Episode
Two Teenagers Built A $50 Exhaust Filter That Claims To Cut Emissions 74%
- Podcast
- Autoblog News
- Published
- Jul 25, 2026
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Summary
Naturally aspirated engines and big-displacement powerplants are slowly disappearing as emissions regulations become stricter in an effort to reduce pollution and protect the environment. That has sparked a wave of smaller turbocharged engines, hybrids, plug-in hybrids, and EVs. But two teenagers ...