Depending on your skill level. You have to find and make oil and coolant feed lines. You have to take off and bung the oil pan for the return line. You have to change the injectors to 370’s. Tee off the stock oil pressure sensor for the oil feed line, etc etc.
Yes it is easy but its alot more work then tightning a few bolts and connecting a few wires. I guess it depends on your skill level and what you want in your car.
I love KA-T and thats the only 4 cylinder i would do.