Our 630HP supercharged E39 M5 just got a major upgrade—a Wavetrac differential! How does it transform traction, handling, and overall driving performance? Watch as we install and test this ...

If you want a dedicated track car or the ultimate canyon carver, you could do what many would do and head straight to a Porsche dealership, picking up the keys to either a new or used 911. However, if ...

I’ve always remarked that rear-wheel drive BMWs love oversteer. There’s just something about the way the rear-end progressively and predictably steps out, and as long as you’re committed to powering ...

A 1969 Plymouth Road Runner that has been comprehensively restored and modified is looking for a home, a year after going on display at the 2019 SEMA aftermarket show in Las Vegas. This particular ...

It hasn't taken long for the 997-era Porsche 911 to achieve something approaching classic status. The implication was always there, thanks to a more traditional 911 look than a 996 and the same famed ...

Larger 3.8-liter 911 engine paired with suspension and brake upgrades transform the Porsche Cayman S into an undeniable track weapon. It’s hard to believe it but the 987-generation Porsche Cayman S ...

So you bought a 335i, because let's face it, they are a performance and luxury bargain, and you want to modify it, make it faster and improve its handling. But BMW never offered a factory limited-slip ...

A Porsche 911 of the 996 generation – the first of the water-cooled 911s – given upgrades to improve its reliability, durability and performance. Porsche specialist RPM Technik believes the older cars ...

One of the known shortcomings of a typical torque biasing differential is its loss of drive under zero or near-zero torque conditions. The WaveTrac is the latest and greatest in differentials from ...

Many differentials on the market today provide little to no grip under low torque conditions. Moser Engineering is now the sole distributor of Autotech’s new 35-spline, 12-bolt WAVETRAC differential, ...

We recently showcased the benefits of a limited-slip differential upgrade on our RWD Project G35, so we thought it would be useful to do the same for the FWD crowd, this time using a Wavetrac LSD.