whats faster runnin complete stock engine with exact same turbo setup .B18b1 on the Ls b18c1 on Gs-r both have 3" piping all the way back. Both have the Turbonetics Super 60 Turbo with 550 cc injectors ,muetek turbo manifold . fmic , tial wasteget ,HKS SSQV bov . stock ecu , not tuned yet. me and my friend are in the process of installing them on our cars but curious to see wut people have to say about it before we get to race, i drive the Ls he drives the Gs-r.