Supertech Supertech SPRK-TS-DUR-DS - Ford/Mazda Duratec Single Valve Spring Kit - 55lbs at 35mm MSRP: $659.66 Was: Now: $527.84 Add to Cart
Supertech Supertech SPRK-TS-DUR-D2 - 05-15 Ford Focus 2.0L Dual Valve Spring Kit MSRP: $735.22 Was: Now: $588.31 Add to Cart
Supertech Supertech SPRK-FE20BE - Ford/Mazda DURATEC 2.0L/2.3L Beehive Valve Spring Kit (Use OEM Retainer/OEM Seat) MSRP: $412.29 Was: Now: $329.90 Add to Cart
Supertech Supertech GDE-DUR16-8 - Ford Duratec / Mazda MZR 2.0L/2.3L Intake/Exhaust Valve Guide - Set of 8 MSRP: $80.86 Was: Now: $67.99 Add to Cart
Supertech Supertech MAEVI-2301D-6MM-8 - Mazda MZR / Ford Duratec 2.0L/2.3L Inconel Exhaust Valve - Set of 8 MSRP: $405.83 Was: Now: $324.74 Add to Cart