The dealership finished up my SC install yesterday and I picked it up last night.
I haven't put many miles on it yet but I've made a few launches with it and roll on's out on the freeway and you can definitely tell there is a significant gain in power. Maybe not quite as significant as I was expecting but my wife tells me sometimes my expectations are too high. I have a Edge controller on my diesel pickup and with it on the higher settings the increase in power is huge so I guess I was expecting my SC Taco to be the same way. I know, not really a fair comparison.
Like has already been noted, the noise level is relatively unchanged until you stand on the loud pedal and even then it's not really very loud. Much quieter than the other SC equipped vehicles I've been around.
To me, it feels as though TRD was VERY conservative with the boost and or fuel map. I think this kit has A LOT more in it to give with the right tune and boost level. It feels to me as if it's begging for more fuel. Don't get me wrong, there is nothing wrong with the power increase it's just that I think with a little extra boost and more fuel being dumped it would realllly wake these things up. I'm probably a little more accustomed to higher performance levels than the norm so I'm always wanting more.
Based on first impressions, I would gladly do it all over again. It's a very clean looking kit. If you didn't know better you would think it came from the factory with the SC kit installed. I wish it had some kind of temp gauge for its separate cooling system though. Would be nice if that was part of the kit or even an option. I don't really like the thought of not knowing anything about that part of the system unless you open the cap and look to see if it even still has fluid.
I think for now, I'm just going to get some miles on it, the vehicle only has 2500 miles total as of now, then decide if I want to make any changes but knowing me, I see a call to URD in my future.