When a car is being upgraded in terms of horsepower and fuel efficiency, exhaust upgrades tend to be near the top of many ...

One of the most distinctive aspects of Subaru vehicles is the so-called boxer rumble, thanks to the unequal length headers.

While it is very common to port match an intake manifold to a set of cylinder heads to ensure that there is proper port alignment so that the air /fuel mixture can enter the intake side of the head ...

When new, a Mopar C-Body was a status symbol as it meant you could afford one of the most comfortable and roomiest offerings by the Chrysler Corporation. The C-Bodies also offered the best ride ...

The folks at Kenne Bell Superchargers, Performance West, and Doug's Headers have recently conducted a series of pulls, which rated the stock 5.7L at a more conservative 263.4 hp at 5,500 rpm and 281.5 ...

Our extensive study of '11-'12 Mustang GTs has taught us a great deal about the Coyote engine's preferences, when it comes to making performance-oriented changes. We've learned that Coyotes are ...

race exhaust headers can completely change the way a bike performs and sounds. here’s a clear breakdown of why they matter, what they do, and how they deliver more power and excitement on the road. #r ...

Well-engineered, bolt-on replacement exhaust systems are a relatively modern advancement. Up until the early 1980s, enthusiasts were forced to replace a rusted-out mess of mild steel piping with more ...

Slip-on mufflers (exhaust silencers) that comply with the Euro 3 emissions standard are now available for the Moto Guzzi V11, the Quota, the Breva, Griso, Norge and 1200 Sport. The silencers are made ...

You don’t have to convince anyone that the burly supercharged 6.2-liter V8 from the Dodge Challenger and Charger Hellcat sounds good. Between start up, idle, revving, and acceleration, that 707 ...