More power is the universal dream of hot rodders, and bolt-ons are the easiest way to add that power. One of the most common questions were hit with is exactly how much power are various bolt-ons ...

No one around the shop could remember the last time we ran our 302 dyno mule, but it must have been five years ago. Fitted with a fresh set of AFR cylinder heads, the little beast started right up and ...

In the last installment we left off installing and dyno testing Pypes hi-flow exhaust system on our buddy Tim Cairone's '87 Buick Grand National. We realized gains of 38 hp and 35 lb-ft by ditching ...

This video showcases a BMW M3 G80 on a dyno as it tests out a new valvetronic exhaust system and custom software tuning. With ...

Testing a Porsche 992 GT3 RS on a hub dyno at 9000rpm, featuring a straight-piped 992 GT3 Inconel exhaust. Captured with pure flat-six sound, precise throttle response, and high-revving performance.