Designed for vehicles running aggressive tunes and high boost pressure

5L NF Fuel Enhancer 

Ratio : 1:4 ( 5L Fuel enhancer to 20L Fuel ) For cars with aggressive octane boost tunes 

Ratio : 1:5 (5L Fuel enhancer to 25L Fuel) For cars with moderate octane boost tunes

Tested to fully support octane needs for 95-102 octane tune

Supplied with a flexible spout for easy use