BBK 99-04 GM Truck SUV 4.8 5.3 Shorty Tuned Length Exhaust Headers - 1-3/4 Silver Ceramic (40050) 16430 PO1-XTSD kit features an Xtreme

PO1-XTSD kit features an Xtreme pressure plate for the most demanding driver

The digitized three dimensional design measured to exact cabin contours of your vehicle for trapping mess and spills yet

5 XX Sprung Street Kit is designed for high-powered street machines

Bolts up to our 2ZZ high-flow cat

BBK 99-04 GM Truck SUV 4.8 5.3 Shorty Tuned Length Exhaust Headers - 1-3/4 Silver Ceramic (40050) 16430 PO1-XTSD kit features an XtremeThese BBK Performance shorty tuned Length exhaust Headers are designed and constructed as direct fit replacements for all 99 04 GM Truck and SUV 4. 8L and 5. 3L applications. Each header is manufactured with 1 5 8" CNC mandrel bent tubing that offers unrestricted exhaust flow for increased horsepower and torque over factory OEM manifolds. BBK tuned Length headers offer improved scavenging waves for better combustion which leads to improved performance