Hardrace Rear Adjustable ARB Kit - S14/S15 Silvia Sumps & Baffles The Hardrace strut bars are

The Hardrace strut bars are designed to tie the tops of your struts together

The V2 updates the original FK2 system by replacing the OEM rubber inlet tube with a carbon intake tube that has an integrated MAF sensor mount and runs a custom silicon hose for a smooth path from the filter housing to the turbo inlet

although they are compatible with others

which will eventually affect the fitment and in some cases can causes them to pop out

Hardrace Rear Adjustable ARB Kit - S14/S15 Silvia Sumps & Baffles The Hardrace strut bars areHardrace were created in 1998 with the sole purpose of designing and manufacturing uprated chassis components using the latest techniques and materials. Each of their components is designed to directly replace the factory part, allowing for pain free, bolt on fitment.