Headers for 2004-2008 F150 4.6L
RELENTLESS PERFORMANCE ARE PROUD TO OFFER
COMPARE TO JBA 1687SJS
3/8" CNC flange
Mandrel-bent stainless steel primary tubes
Premium Quality hardware
Bolt-on installation
321 Stainless , not Cheap Mild steel like others
Increased horsepower and torque throughout RPM
Improved throttle response
Improved fuel economy
#Improved engine compartment aesthetics
