for the most part right... however the bumper can stay. when i did it o removed radiator, fans, ic pipe, heatsheild. o2 sensor, egr s***, oil and coolant lines(wich are the tricky part), wastegate vacuum s***, intake, then the manifold came out. once you get it to that part is the tricky part though. the 5 bolts on the s-pipe are little sluts. one is almost impossible to get off even off of the car however if you cannot get it off... goto an exhaust shop (btw this install is impossible without a friend) and ask if they can remove the s***... thats what i had to do and it worked. then to reinstall, after the ghl downpipe is on... the manifold will not fit going through the top of the car, you need to get under and push it up through the bottom of the car while your buddy is above guiding it onto the head