Brandname: BBK Part Number: 40050 Description. These 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. BBK tuned Length headers offer improved scavenging waves for better combustion, which leads to improved performance and fuel economy over stock or equal Length headers. As with all BBK Performance exhaust headers they feature a 3/8 laser cut flange for additional strength and a guaranteed leak free fit.
All headers are robotically and precision hand welded and then pressure tested to ensure years of reliability and performance in the real world. All BBK exhaust headers are available in a bright chrome or polished silver ceramic coated finish and include new exhaust header gaskets, header bolts and hardware to complete the installation. Direct Replacement Bolt On Performance Exhaust Headers. Dyno Tested For Maximum Performance. Bolt On 10-15 Horsepower Plus.
CNC Mandrel-Bent 16 Gauge Tubing For Max. Precision Laser Cut 3/8 One Piece Flanges. Hi Temp Polished Silver Ceramic Coated Finish. Pressure Tested For Leak Free Performance.
New Gaskets And Hardware Included. BBK Offers Quality And Value That Guarantees Years of Top Perf. Designed and Manufactured in USA. Engine Make/Size: Chevy 5.3L (Vortec). Gasket or Seal Included: Yes. Tube Diameter: 1.750 in. Tube Wall Thickness: 14 Gauge. WARNING : This product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer.