Much respect to SRT (Silly Rabbit Tuning) on this DL501 dual clutch software tune package. What they are able to do with the factory TCU is quite frankly incredible especially when you factor in this software is still evolving and only $799. ...

This is a monster AMG GT R which features the Weistec Engineering W.4 turbo upgrade package. Note, this is not a hybrid upgrade but a set of completely new turbos that replace the factory M178 AMG turbochargers entirely. ...

We're excited to announce our Engine Control Unit (ECU) Upgrades are now available for the Audi S4, S5, and SQ5 (B9) 3.0 TFSI engine with the Bosch MG1 ECU! Expect massive gains with up to 431-480 HP and 467-549 FT-LBS of torque on tap, depending on octane, from this simple software upgrade. Additionally APR Plus is available with 431 HP and 467 FT-LBS and comes with a factory term limit matching limited powertrain warranty! ...

Hey guys, here at VTT we have been painfully aware of the relatively poor choices for motor mount upgrades for the N5X platform for quite a while. While there are some options on the market, they are either A. Expensive, B. simply do not fit well, C. Have harsh NVH and road manners, or D. a combo of all of the above. ...

You may recall where we last left off with our Project 991.2 Carrera it was making more power than anyone else in the world at 668 rear wheel horsepower. The problem? It was making that power on race gas and E85 taxed the fuel system. ...

TVS Engineering continues to show their expertise when it comes to VAG dual clutch (DSG) transmissions. Their latest effort if a conversion to the newer, stronger, and faster DQ500 gearbox that is utilized in the 8V RS3 and 8S TT-RS. ...

Yet another stout ByDesign XR Porsche 991 3.8 Turbo result here. This 991.1 Turbo S comes hot on the heels of a 991.2 Turbo S making ~890 awhp with the same turbo kit on the same dyno. Even the tuner, M-Engineering, is the same. ...

This is a rumor being spread by Auto Motor Und Sport. Apparently the RS3 will get a bump to 450 horsepower and that likely is in response to the Mercedes-AMG M139 motor. This 450 horsepower RS3 may be an RS3 Plus model. ...

It seems Porsche is aware the 992 Turbo S gained some weight and they are going to do something very cool in offering a Lightweight Package sometime this year. The package is expected to drop roughly 65 pounds or so from the curb weight. ...

The idea behind this race seems to be four-cylinder hot hatches but the Mercedes-AMG A45 is operating at a completely different level. Its M139 inline-4 is the world's most powerful production four-cylinder motor. ...

High horsepower configurations often require more fuel, especially on applications where ethanol is used. The APR 980cc MPI Injector Upgrade Kit includes an upgraded high-flow multiport injection (MPI) injector and harness necessary to satisfy high horsepower builds. ...

Racechip is known for producing a variety of piggyback tunes. On the Porsche 718 9A2B4 platform flash tuning is available. So why opt for the Racechip GTS Black box at $799? That is a good question especially considering if going the piggyback route BMS is well established with their JB4 line and a better value. ...

The BMW F95 X5M is the natural matchup against the Jeep Trackhawk. It has a boosted V8 and is closer in curb weight. That weight issue is what makes the new F98 X4M (and F97 X3M) so potent as it is just as capable of making power and torque as the bigger X5M in a lighter package. ...

Well, how about this? The BMW F80 M3 you see here is running the KRATOS KRAS55Bi S55 turbochargers. We know those turbos make power (they hold the S55 power record) but how about some ridiculous pump gas and stock fuel system numbers? ...