Actually..thats an entire package...come with all sensors, harness everything. However..dont do it. You can get something MUCH cheaper from PACE performance or one of the other GM wharehouses. You should be able to get an entire LS1 for $3000 or so. Hell...you can get a 6.0 liter iron block LS1 for $2500. With the money youll save you can get the Accel Gen7 dfi made for LS1 for arounf $2500. Then slap some ported heads on it..along with a cam, forged pistons, and rod bolts and youll be good fore 450 rwhp and 700 rwhp with a little spray. And you could put it in any vehicle you want since the Gen 7 runs it all.