Subaru EJ20/EJ25 Premium Springs | Titanium Retainers KVS1847-BT bosch dbw Rated from 550-750HP depending on

Rated from 550-750HP depending on fuel pressure & pump voltage

Gates Thermostat to suit most RB Engines

ARP - Head Stud Kit to suit Nissan SR20DE & SR20DET 2

294/298 Degrees advertised duration

Featuring nano-peen and gold nitride surface finishing for superior strength and performance

Subaru EJ20/EJ25 Premium Springs | Titanium Retainers KVS1847-BT bosch dbw Rated from 550-750HP depending on100lb seat pressure at 35. 5mm. 185lbs at 11. 5mm valve lift. SUBARU EJ20 EJ25. Premium quality Beehive spring & retainer set. \n \nOvate wire 'PACALOY' Beehive spring wound in USA by PAC. Nano peen and gold nitride surface finishing treatments for superior endurance. High spring frequency to allow for better spring surge control at high rpm. Increased seat pressure, low open pressure design. Designed specifically for the Subaru EJ flat four boxer