Great mild upgrade over stock valve springs for around for under a 500hp engine.
Reviewed by: Jakeob10/17/2021 12:36PM
Product ownership: Less than 3 months
Purchased from: CNC Fabrication
Corey and his stuff doesn't disappoint! Revs are up, powerband is smoother. Highly recommend on any 7.3. Pairs well with my 160/0 injectors.
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