Is anyone using the Scorpion/WeaponX cops on the 5.4 L 2v? WeaponX rep says there are substantial mpg (up to 4 extra mpg) and 12 hp gains with the EFX coils. Less with their street cops. Can anyone give an amen to the claims?

 

Just installed them on my blown 5.4 250sd,16psi. ,they kill,for non blown motor unknown,I can say top quality product ,idle very smooth, motor hits like a ton bricks hot or cold.summit,acel,etc. all junk, go stock or weaponx.