Nope. The upgrade takes all of 10 minutes. Unplug and pop the old one out, plug in and seat the new...and your done. One of those little things that do wonders for the driving experience and very well worth the $.
01 Focus -240whp @ 10psi
02 Lightning - Mostly stock 330rwhp, 425tq
86 Mustang SVO - the investment
80 V8 Pinto - pulled the motor, 331 stroker in progress