[PVXCummins]

Took my pump and CDS 5k springs to Antrim a few years back. They called me up and said they were throwing the CDS springs in the trash, spent almost a day trying to get the pump to just idle correctly on the stand. They put Haisley springs in and ive been running that a few years now with no issue. 180 pump and it flows 500ccs. I see 6,000 RPM when i let the clutch out so I am a true believer in the Haisley springs. Maybe CDS's quality is better now, idk? But you get what you pay for, CDS springs were the cheaper route.