 If you own a Mark 7 GTI or Golf R, you're probably already aware of how well these cars respond to engine tuning and common bolt-on mods. If you have a DSG version, you may not realize how big of a difference is made when you also tune the transmission to make use of all that new found power. So we're going to go through all the benefits that come with tuning the DSG on an access port. The most instantly tangible improvements come in the form of several very cool custom features. The dashboard will now display the current gear in drive, sport, and manual modes. The dual-clutch transmission is technically a manual, but from the factory, most of them won't give you absolute control over when to shift. The access port can give you that complete control. So if you want to hold a gear at a lower RPM or rev all the way up to redline and keep it there without shifting to the next gear, that's your decision to make. The car doesn't do it for you. Generally speaking, top gear really isn't that useful for aggressive driving. So we've adjusted sport mode to prevent the car from going into 6th or 7th gear unless you get all the way up to 6,200 RPMs in that second highest gear. And probably the most important improvements are increased line pressure and the adjusted shift schedules that transform the experience of driving a DSG car. With an access port installed on the TCM, the transmission shifts much more crisply in automatic mode and responds immediately to driver inputs and manual mode. The increased clamping force is also a must to handle the big torque gains that these engines produce with significant modifications. The ability to apply all of those custom features come in the form of a few different off-the-shelf maps. As you've probably already experienced, the factory sport mode is really aggressive and actually works quite well when driving at the limit. But it's not ideal for the street, and the factory drive mode is far too soft or sluggish for any condition. The first map is called OEM Plus. It includes all of the new features but retains the original stock shift schedule. The next is Sport. Not to be confused with the sport mode on the car, this map has all of the new features but also applies optimized shift schedules with wide open throttle shift points raised by 50%. Lastly, the aggressive map has all of the same features and adapts the wide open throttle shift schedule by 80%. Our goal with these maps was to optimize turbo response by maintaining the ideal gear in RPM at all times. And the convenience of the Axisport makes it something that you can install all alone at home with the ability to change maps at the track to suit your specific needs at any time. Whether it's grippy tires, bigger brakes, stiffer suspension, or body arrow, tuning a car properly is about a lot more than just making lots of engine power. And the more common dual clutch transmissions become, the more important tuning a transmission with something like an Axisport becomes just as important as any other modification you might make to your car.