I got a stillen flywheel and i love it!!!!!! I'm sure its comparable to the fidanza. I got an acpt drive shaft and I LOVE to look at the pictures I took of it before I installed it, but, its price to me wasnt worth the gains. What's weird is that it doesn't feel like it pulls as hard, but if you look at your tachometer you will notice you are revving alot quicker(but I kind of like being thrown back in my seat) definately less lag. I know that doesn't make sense but If you get it you will know what i mean.
And I soon will be the proud owner of a carbon fiber plenum cover!!! you know me ,check your email :)