Compliance with emissions regulations nets a 9-horsepower windfall for the base 3.0-liter.
under its engine cover. OK, then why is it only 9-hp juicier than last year’s Carrera, you ask? It’s all a big emissions-compliance deal. Porsche is looking forward to new Euro 7 emissions regulations that kick in at the beginning of 2027, imposing stricter limits that essentially eliminate the full-throttle fuel enrichment that’s long been used to regulate combustion and exhaust temperatures.
EPA testing isn’t complete yet, but don’t expect a huge bump in the test-cycle numbers. No 911 has ever needed anything close to wide-open-throttle to complete the FTP 75 test, so we’d expect similar results. But if you primarily drive your 911 during track days, where you’re routinely doing a lot of wide-open-throttle work, you may find yourself filling up less often—and generating way fewer emissions in the process.
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