There's just something undeniably thrilling about the sound of a well-tuned diesel engine exhaust. Among all the ways you can upgrade your diesel truck, the exhaust modifications are what give your ...

We at GMHTP have sung the praises of every new LS V-8 for the past decade, and the song remains the same: building off of the original Gen III in 1997, every new GM mill gets more strength, more ...

The 6.2-liter V8 Supercharged LS9 was produced by General Motors for use in high-performance vehicles, and is still available as a crate engine offering from Chevrolet Performance. Being one of a ...

If you're looking for the ultimate in factory performance, nothing comes close to the Corvette ZR1. With its supercharged LS9 engine (churning out a factory-rated 638 hp), carbon-fiber-body good looks ...