Supertech Ford/Mazda DURATEC 2.0L/2.3L Beehive Valve Spring Kit (Use OEM

Supertech 83lb Dual Valve Springs Retainers For Mazda Ford Duratec 2.0L 2.3L MZR

SuperTech Dual Valve Spring Kit For Ford Duratec 2.0 2.3 2.5 - SPRK-TS-DUR-DS

Supertech 70lb Dual Valve Springs Titanium Retainers For Ford Duratec 2.0L 2.3L

Supertech Dual Valve Spring Kit Fits Ford Duratec/Mazda MZR 2.0L/2.3L/2.5L

Supertech VW/Audi 2.0L FSI EA113 Single Valve Spring Kit

Brian Crower BC0400 Springs + Ti Retainers for Ford Duratec Mazda MZR 2.3L 2.5L

Supertech Single Valve Springs Ti Retainers for 2013-2020 Audi S3 2.0L EA888