The tests run at Nissan's Decherd Powertrain Assembly Plant in Tennessee sound absolutely brutal. The engineers start with ...

We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are ...

The Porsche 718 GT4 RS is tested on the dyno, revving to 9000rpm with its 4.0 naturally aspirated flat six. This video compares JCR and Akrapovic exhaust systems, highlighting tone, volume and ...