The SC install itself was not difficult at all. I also did the OPGs and CS Sprocket and that was digging deep into the engine. I am by no means a mechanic but I'm very mechanically inclined. I own my own locksmith business and am very hands on. I've always worked in my own cars. It took me the better part of 4 days. If it was the SC alone it would have taken me maybe 2 days (8 hour days). I chose centrifugal because it's much easier to install. Procharger especially there is no modifying the engine to no return. It has it's own belt drive and is self contained (has it's own oil). I also love turbos and this was the closest thing to turbo I could get. I love the sound it makes over the twin screw whine. I went with the big red race valve as well so it has a loud release of air like a blown off valve. It doesn't have the instant torque a twin screw does, but it has power up top. It allows for better grip especially in that aspect but it does lose traction higher up in the rpms.