Supertech BMW S54 Dual Valve Spring Kit (w/SEAT-BMS55)

Engine parts and engine bay upgrades for Dodge, Jeep, RAM, Chrysler, Chevrolet, Ford, Toyota, Nissan, Subaru, and Honda vehicles are stocked at Black Ops Auto Works. Shop oil catch cans, supercharger pulleys, thermostats, radiators, cooling parts, throttle bodies, intake manifolds, headers, ignition coils, spark plugs, sensors, gaskets, fuel pumps, valve covers, engine covers, billet cap covers, and full engine bay dress-up parts for HEMI, Hellcat, Trackhawk, Redeye, Demon, Scat Pack, RAM TRX, LS, LT, Coyote, EcoBoost, K-Series, and 2JZ builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 14,298 engine SKUs across performance, cooling, oil control, ignition, and appearance categories. What This Category Covers The Engine collection combines OEM-replacement engine service parts with performance aftermarket upgrades for supercharged, turbocharged, and naturally aspirated builds...

Supertech engine internals including valves, valve springs, retainers, and valvetrain components are stocked at Black Ops Auto Works for a wide range of import and domestic engine platforms. Shop upgraded parts for BMW M54, Ford and Mazda Duratec, Honda Civic and CR-Z, Nissan KA24, VQ35, and RB26, Toyota 4AGE, 2JZ, 5VZFE, and 2UZ-FE, Volkswagen and Audi EA888 and EA113, Mazda Miata, and Mini Cooper engines. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 617 Supertech SKUs spanning valves, springs, retainers, and related valvetrain hardware across import and domestic engine families. What This Collection Covers Supertech specializes in precision engine internals for naturally aspirated and turbocharged builds, manufacturing valves, valve springs, retainers, locks, and seals engineered for high RPM durability and improved airflow. This collection brings together fitment verified ...

Valve springs and retainers for high-RPM and boosted engine builds are stocked at Black Ops Auto Works. Shop dual and single valve springs, beehive-style valve springs, titanium and chromoly retainers, and matched spring-and-retainer kits for HEMI, LS, Coyote, K-series, EJ, and 2JZ platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 406 valve spring and retainer SKUs across spring rate, seat pressure, and material categories. What This Category Covers The Valve Springs, Retainers collection spans upgraded valve springs for higher lift camshafts, beehive-style springs for reduced valvetrain mass, and titanium retainers that shed weight from the reciprocating valvetrain. The catalog is strongest on Supertech valve springs and retainers for import four-cylinder builds, with broad coverage of dual spring kits for domestic V8 platforms running aggressive camshaft profiles. Cat...

Valves and valvetrain components for import, domestic, and performance engine platforms are stocked at Black Ops Auto Works. Shop intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, and lash caps for Toyota 2JZ and Supra, Honda K-Series, Nissan RB and SR20, BMW B58 and S58, Subaru FA20, Ford Coyote, and GM LS platforms. Every part is filterable by year, make, model, and engine so builders and tuners can confirm fitment before ordering. Black Ops Auto Works carries 1,391 valvetrain SKUs from proven performance brands. What This Category Covers Valves and valvetrain components manage airflow into and out of the combustion chamber and keep the valvetrain sealed and stable at high RPM. This collection spans intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, lash caps, and cam follower shims. Why the Valvetrain Matters for Pe...