no its stock, its a 94 ls, he has 170k miles on his motor, he has 310 injectors and a walbro fuel pump and vortech fmu for fuel delivery, and also an s-afc, i also have a completely stock ls turbo with hondata heatshield intake manifold gasket, 310 injectors, jackson racing fmu, fuel pump and s-afc and i made 261.2 hp and 228ft lbs torque on 13psi on pump gas(93), i have a 94 ls also but i swapped a 98 ls motor in my car , the motor had approximtaley 75k on it when i dynoed it last month, mine and his car differ a little bit on parts such as turbo, exhaust manifold and intercooler, but not much, ls motors are hosses baby.........