I ordered the Killer from Turbochargers.com a couple weeks ago. As I expected, customer service was top notch. I rec'd it last night and had it in a few hours. As arrived the turbine housing wasn't ported. I gave it a quick porting to remove the step to match my ported manifold. The install went smooth. You have to bend the water lines a bit to clear the compressor housing, but thats about it. I haven't had a chance to take it for a real ride yet, but my first impressions are very good. Spool is very quick considering the big16 wheel. Keep in mind this is on an auto. I have the boost low at 15 psi for now and i had full boost by 2,800 - 3,000 rpm. Boost is much smoother and linear compared to the T-25. Pulls strong with no creep or fall off to redline. As soon as I upgrade the injectors, fuel pump and AFC, I'll raise the boost. I'm very happy with it so far.