I am 100% sure the leak is not coming from the heater hoses, When I do the plenum pull Im going to replace it anyways, I guess I m going to try first removing the down pipe when I have the plenum out, hopefully I will be able to replace it thanks guys! Is there any other hose I should replace when I pull out the plenum ? Sorry If I have too many questions, I am new to twinturbo.net You guys have been great thanks for the help