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Suits upgraded turbo 54-64mm
TO MAKE YOUR OWN CUSTOM HARNESS
Nissan RB block thrusts are all cut in different places from the OEM manufacturer
* Custom made springs already fitted inside the stalks make for extremely fast installation as well as no trimming of springs required
Reliable street use
Subaru EZ30 Spring kit KVS30 jza Suits upgraded turbo 54-64mmIntake: 76lb at 31. 2mm, coil bind 19. 05mm. Exhaust: 90lb @ 37. 0mm, coil bind 26mm. SUBARU EZ30 High Performance valve spring set to suit stock retainer. Short spring installs on intake side to give 76lb at 31. 2mm, coil bind 19. 05mm . Add base supplied to Exhaust side on top of OEM base to give 90lb @ 37. 0mm, coil bind 26mm.
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