5psi Middle Spring.
Dimensions: L 49mm x OD 33mm x ID 26mm
Suits: GFB EX38/44 Wastegate.
Note: If the positioning of the wastegate is not correct the minimum boost levels will be greater than what the spring is rated. There may be a 2psi variance with new wastegate springs and the tension pressure will be more than what it is actually rated. The spring pressure tension will soften up once it has been exposed to heat over a period of time.
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