I have installed/tuned injection kits from Aquamist, Hydramist, Snow Performance, SMC, and Devils Own. The Aqua Mist kits are by far the best injection kits, but the cost of the kits also reflects that. If you want to see all the componants of a proper injection kit, check this out.
http://www.elementtuning.com/Hydrami...amistguide.htm. Then look at one of these kits.
http://www.snowperformance.net/products.asp?id=1. The Hydramist kit does not have uneeded bells and whistles, every componant in that kit has a purpose. One of the most important things with tuning a injection kit is consistant line pressure. The Hydramist uses a PWM signal to control fluid flow, has a inline pressure damper, and does not use the stupid pressure check valve on top of the pump. 90% of all other injection kits dont have any kind of PWM signal to control fluid flow. They just rely on increasing or decreasing the pressure the pump puts out by varying the voltage to the pump, very crude in my opinion. I am raving about the Hydramist because like I said, I have installed and tuned a number of different systems, and there is no question the Hydramist system is hands down the best injection system out there. Unfortunalty it is basicaly set up to be used with the Element Hydra ECUs, but I do think it can be converted to be used with other engine management systems. But Aquamist makes the kits for them, so if you get a 2D system from them, it will have most of the features the Hydramist does.
Andy