I have a 981 base and run into this debate with myself all the time. My logical brain/gut tells me the price for the performance is not worth it for a street driven car (no track). But my diseased mod brain constantly thinks about it and would love to do it. I have the cash, just can’t seem to pull the trigger. Still looking for used 200 cell headers to save some money, they are tough to find. For now I am just gonna enjoy the car.