if you need headers, y pipe and cat, i just got my LT's installed on my 95 Z28 so i'm going to sell the RK sport ceramic coated headers, y pipe and cat that was on it. Since we have the same year car there should be no modifications needed for any emissions hookups or anything. I wish that was true for the pacestter longtubes, off road y pipe, and magnaflow catback that i just got installed, the bill is $800 just for labor and small parts like hoses and wiring modifications