The B58 tuning market is really heating up. There are plenty of software solutions but the factory turbocharger is taxed fairly quickly. If you want to reliably go past ~440 whp depending on supporting mods and fueling you will need to upgrade the turbocharger. ...

Enthusiasts no doubt will be enamored with the big turbo 2.5 TFSI builds that set records but it really is incredible how strong a MKIII Audi TT-RS or an 8V RS3 becomes with just some tuning courtesy of good software work. ...

Where we left off with the KRATOS F80 M3 was with it making 1163 horsepower to the rear wheels and raising the S55 power output record to new heights. Well, their Dodson Sportsman+ DCT setup became taxed so in order to move further and reliably hold all that torque a new DCT build was necessary. ...

Turbosystems Lithuania released these aftermarket turbo actuators for the Audi 4.0 TFSI twin turbo V8 engine platform. These are a bolt in affair designed to help with controlling higher boost in larger power applications where the factory piece can fail. ...

A new Volkswagen Golf is always a big deal and the upcoming MK8 is eagerly anticipated. Volkswagen has yet to officially reveal the car but we get an early glimpse of the full design thanks to it being spotted in a European advertisement. ...

It is no surprise to see a Mezger block 911 Turbo topping 1000 wheel horsepower. Frankly, there are more 1000+ examples of the older port injected 911 turbo GT1 derived engine design than the newer direct injected engine designs. ...

RK Autowerks developed air intakes for the AMG M157 5.5 liter twin turbo V8 under the hood of the C218 CLS63 AMG. Presumably, these can be adapted to the W212 E63 AMG which share the same M157 5.5 liter V8 as well. ...

The 981 Cayman GT4 as you know featured a 3.8 liter flat-6 essentially borrowed from the Porsche 991.1 Carrera S. This is not a GT powerplant but Dundon is doing their best to take this naturally aspirated flat-6 to the maximum level with a 4.5 liter build. ...

The new Porsche Cayenne Turbo does not take a huge leap in performance over its predecessor with its new 4.0 liter twin turbo V8. This is the base version of the Turbo with 550 horsepower and 568 lb-ft of torque which essentially just edges previous generation Turbo S performance. ...

We’ve seen a recent uptick in customers asking for a “Stage 2+” tune designed for upgraded MPI or port injectors. The theory being power is held back due to a lack of fueling with the factory fuel injectors. Seeing as this would be easy to prove, or disprove, and potentially an additional product we could offer, we set out to test the theory. ...

The nice thing about the BMW N63/S63 engine design is the bore and stroke is all the same for the 4.4 liter twin turbo V8's. Even BMW shares parts such as pistons and rods between them so a set of aftermarket forged rods will apply to all the motors. ...

This is just stunning when you consider that the C205/W205 C63 AMG Coupe is still on its factory M177 engine internals and that the car is on the stock transmission. Remember, earlier this year the car set the quickest M177 record with a 10.1 @ 137.9 pass. ...

These are monster gains for cylinder head work only at this output level. AudiBoost asked Race Developments if this included any camshaft work and they stated they do not mess with the cams even for 1000+ horsepower builds. ...

We have a pretty good idea now as to what the factory B58 turbo can give you. What you are seeing is about that range and Mission Performance feels the turbo does not have more to offer especially past 5500 rpm. ...