Manley Beehive Valve Spring & Titanium Retainer set - Subaru WRX/STI Kartboy 875" = 231lbs

875" = 231lbs

Without a properly designed AOS

Recommended for API SN/SM/SL/SJ/SH/SG/CF and ACEA A5/B5

we wanted to see how different pleat packs would compare to the OEM filter in terms of CFM through the filter as well as dust capacity

Manley Beehive Valve Spring & Titanium Retainer set - Subaru WRX/STI Kartboy 875" = 231lbsThe Manley upgraded beehive valve spring and titanium retainer set is a great choice for Subaru EJ20 EJ25 engines with upgraded camshafts that require valve springs for increased lift and higher RPM use. The set combines Manley's upgraded 310 lbs. in valve spring set (Part# 22185 16) with their matching titanium retainers (Part# 23185 16). The retainers are manufactured from heat treated aerospace grade titanium, then CNC machined to exacting