[nikitopo]

Yes driveshaft options are also good. Overall, I have a feel that such kind of mods will die as we go forward in the future. Most cars nowadays are getting turbos from factory and even the ones that don't, it is easier to install a SC than trying to get there performance wise with all these alternative and small incremental changes. People also have the tendency to change cars sooner, so they want instant results and quicker. For example high power profile camshafts was the norm in the past for NA engines. How many will do this kind of modification today and open the engine? It is more expensive and needs more time.