Brian Crower - Single Spring/Titanium Retainer Kit (Mitsubishi 6G72) legacy-b4-bl5-applied-b-2004-2005-tc-ej20y-h4 Part Number: I10AGN

Part Number: I10AGN

Part Number: F67AZR

Impreza WRX STi A-Line | GRF APPLIED E | 2013-2014 | TC | EJ255 | H4

Part Number: 623110C-6

Reference Number: 11200-K20-N01

Brian Crower - Single Spring/Titanium Retainer Kit (Mitsubishi 6G72) legacy-b4-bl5-applied-b-2004-2005-tc-ej20y-h4 Part Number: I10AGNSpecifications: Manufacturer: Brian Crower Reference Number: BC0140 This is complete set of Brian Crower SINGLE SPRING TITANIUM RETAINER KIT (Mitsubishi 6G72). Aftermarket cams increase the efficiency of your head by using higher lift and duration. Any time you increase the lift and duration of a cam, you are putting more stress on the valvesprings and retainers. Factory valvesprings were not made to handle the abuse of higher lift and duration,