i have a 01 5.4l i am looking hard at those two upgrades what will my gains be hp and tq at the rear wheels and will i actually notice the power increase, and will my 0-60 and 1/4 times improve with these i have a edge and cai, also wheres the best place to get those items and brand w/o spending alot
thanks

 

you could piece together your own e fan kit for $100 or so and there are Mac UDP's on ebay for $130ish shipped I believe