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High Performance PACALOY valve spring
the Kompact BMW Kit is an ideal performance upgrade for N54-engined twin-turbo BMWs (Z4 models require additional pipe kit TS-0203-2001)
the Kompact EM Series will hold more boost and be more responsive in any environment
Utilising our Stainless Steel Valve Seat & Milspec Diaphragm the FPR6 Series is suitable for all Fuel types including Race Fuel and aggressive leaded fuels
SUBARU WRX EJ20 STi V4 Spring Set KVS97 jza80 supra High Performance PACALOY valve spring87lb at 42. 00mm Installed Height. SUBARU WRX Version 3 4 (STI). High performance valve spring set. The OEM STi retainer needs slight maching to fit these springs. 87lb seat pressure at 42. 00mm Installed Height.
