HOW MUCH POWER ARE SHORTY HEADERS WORTH? HOW MUCH POWER ARE LONG TUBE HEADERS WORTH? HOW MUCH POWER IS A CAM SWAP WORTH ON A 4.8L? SHOULD I UPGRADE THE TRUCK INTAKE ON MY 4.8L? WHAT HAPPENS IF I ADD HEADS, CAM AND INTAKE ON A 4.8L? CHECK OUT THIS VIDEO IF YOU ARE INTERESTED IN MAKING MODIFICATIONS TO YOUR 4.8L LS MOTOR (WORKS ON 5.3L AND 6.0L TOO). I COMPARED STOCK EXHAUST MANIFOLDS VS SHORTY HEADES AND LONG TUBE HEADERS ON A STOCK AND MODIFIED 4.8L TO DEMONSTRATE THE CHANGE IN POWER ON EACH COMBO. I ALSO COMPARED THE STOCK VS BTR TRUCK NORRIS NSR CAM, STOCK TRUCK INTAKE VS FAST LSXRT AND DEMONSTRATED THE GAINS OFFERED BY UPGRADING THE HEADS, CAM AND INTAKE.