Unleash your truck’s true potential with these performance-grade long tube headers engineered for 1999-2006 Sierra/Silverado 4.8/5.3/6.0L V8 engines. The mandrel-bent 1.83″ primary tubes merge into a 3″ Y-pipe, reducing backpressure by 25% while maintaining optimal exhaust gas velocity.
Engineering Excellence:• 304 stainless steel construction with mirror-polished finish• 8mm CNC-laser cut flanges• Triple-layer thermal barrier coating• TIG-welded collector joints & MIG-welded brackets• 50-state emissions compliant design
Performance Benefits:
12-18HP dyno-proven gain @ 4500RPM
15% faster turbo spool time (增压车型适用)
Enhanced low-end torque (+22Nm @ 2000RPM)
Compatible with stock catalytic converters
Installation Notes:Requires professional installation – exhaust modifications may be needed. Includes:
Left/Right header assemblies
3″ Y-pipe with O2 sensor bungs
High-temp metal gasket kit
Grade-8 mounting hardware
“Compatible with 1999-2006 Sierra/Silverado models. Aftermarket performance part.” “Professional installation required”
Notifications
