AutoMeter 52mm Phantom II Boost Gauge, 0-35 PSI, Mechanical (7504) Injen use the Evo 8 style

use the Evo 8 style lower hose

but it is still possible some late models came from the factory with the HT12 Green Coolant

Vehicle Fitment: Piping Size: Part Number: 2012-2015 Civic Si Coupe 70mm HS12HC2GTT 2012-2015 Civic Si Coupe 76mm HS12HC2STT 2012-2015 Civic Si Sedan 70mm HS12HC4GTT 2012-2015 Civic Si Sedan 76mm HS12HC4STT

The 10/10 is capable of handling 1200 ft lbs of torque

• Includes magnetic drain plug with dowty seal

AutoMeter 52mm Phantom II Boost Gauge, 0-35 PSI, Mechanical (7504) Injen use the Evo 8 styleMechanical boost gauge with 0 35 PSI range, 2 1 16" size, featuring white LED lighting and no electrical requirements. Includes 1 8" NPT fittings and nylon line kit. Features: Modern white LED through the dial lighting provides clear visibility during nighttime use AutoMeter's race proven mechanical instruments provide trusted accuracy while being simple to install No electrical system required for gauge operation compatible with every street or race