http://www.secureperformanceorder.co...mer_truck.html
I asked about power output and got this response.
On a 4.8L, a 17 Hp gain was achieved by adding headers only. And yes that is rear wheel Hp. So for a 6.0L to achieve a 20 to 25 Hp gain would not be unusual at all. I currently do not have any dyno sheets on a 6.0L
Thoughts? Big loot though. $975 for headers only...
Joe