In an effort to bring the highest quality Chassis to market for our customers we decided to have them laser cut and CNC bent. These Bomber Chassis are duplicates of the car that I won KOH 2015 and the Back Door Challenge in. They are all 4130 and varying tube thicknesses from 0.065 to 0.188. The belly and sliders are 0.188 for strength other tubes are thinner to keep weight to a minimum. The chassis is a cnc bent and notched unit so its very straight and square. We have laser cut tabs for the suspension and power-train as an option. Please give me a call if you have question. Chassis comes tacked together,Freight required and will be billed at time of shipping,Expect at least 1 month lead time on Chassis kits.