Can someone tell me the horsepower on a 1998 5.4 triton v8 engine F150 xlt extended cab?

Also how much would a dual exhaust system add to it?


How much would a K and N air filter system add?

 

HI!... 235H.P and 335FT/LBS of TORQUE. A true dual exhaust system can actually cost you power if it's not done right. If it is done right, about 10 - 15 (FLYWHEEL) H.P. Any of the major air filter set-up will give you about 15H.P (FLYWHEEL).