The Boom Racing D4 Mono Shock System is one of those upgrades that is really important for your 3Racing Sakura D4. The entire purpose of this shock setup is to provide more on-road traction. The energy transfer from wheel to the other during turns or leaning allows you to never lose power or traction. You also adjust the ride height independently with one shock. The entire system installs very easily onto your rig and coems with everything necessary to get it going. Boom Racing also has their 007-BR V2 Gyro, which is a necessary item for your RWD drift cars, especially the Sakura D4 RWD. It helps ease the movements and steering for your rig, allowing you to make graceful turns and execute precision-marked lines. The 007-BR V2 gyro is easy to setup, plug and play, and also comes with a bracket that allows you to swap your one 007-BR V2 gyro between different cars, so you only need to buy one unit of it, and you can save money on other upgrades! Come shop your D4 RWD upgrades here: http://www.asiatees.com/model?3Racing... ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• ATees "About Us" Story: https://youtu.be/PWandtcw8hE ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• Links: Blog: http://www.asiatees.com/rcnews Youtube Channel: http://www.youtube.com/asiateeshobbies Youku Channel: http://i.youku.com/u/UMTY4NjgxOTgwMA== Facebook Page: http://www.facebook.com/asiateeshobbies Instagram: http://www.instagram.com/asiateeshobbies Google+: http://www.google.com/+asiatees Flipboard: http://flip.it/ua3kg Weibo: http://www.weibo.com/asiatees