Lepin put in lots of efforts to replicate this set, with almost identical boxes (minus the Lego logo) and Porsche emblem. This is a very complicated set to build, with lots of small technic parts to assemble. There are 43 unsorted bags of parts, though instruction manual did improve with much accurate colours printing. However referring to Lego manual would be better as Lepin condensed lots of steps into one page. How’s Lepin 20001 Porsche 911 GT3 RS doing? There are problem here and there, like the soft rubber parts in V6 engine, rubber bands that lose the elasticity after few shift of gears. Some of the gears fitted loosley. The parts that formed the engine cover had visible gaps. Also the orange hose seem a bit longer and bended. On the other hand, suspension is springy and gear box could be shifted. A great set to play and display. You could order Lepin 20001 from Aliexpress. I had review of Decool 3368B Porsche 911 GTS (White version) separately.
Hard to tell this is actually bootleg. It took bootlegger three months to clone it. Order Lepin Porsche 911 GTS from Aliexpress.