longtubes
#1
#2
You won't get any longtube headers without being bent over on the price. Most of the longtubes for F-150 5.4's are for Lightnings and don't list 4X4 fitment. Most of the Lightning tuner websites list them. The only place that I've seen that lists your 4X4 application is here:
http://www.secureperformanceorder.co...ord_truck.html
http://www.secureperformanceorder.co...ord_truck.html