1988 BMW M3 Engine and Gearbox – Complete S14 Powertrain

Bring your E30 M3 back to life with this rare 1988 BMW M3 S14 engine and 5-speed manual gearbox package. Known as one of BMW Motorsport’s most iconic powertrains, the 2.3-liter S14 inline-four paired with the Getrag 5-speed transmission delivers the high-revving character, precision, and motorsport pedigree that made the E30 M3 (chassis WBSAK0307J2197113) a legend on both street and track.

This listing includes not just the complete engine and gearbox, but also essential components such as the air box, exhaust manifold, flywheel, driveshaft, ECU, and Dinan performance chip—a complete setup that’s becoming increasingly difficult to find in today’s market.

Engine Overview

• Engine Type: BMW S14 2.3-liter inline-four

• Output (Factory): ~192–200 hp @ 6,750 RPM

• Torque: ~230 Nm (170 lb-ft) @ 4,750 RPM

• Mileage: ~40,000 miles on both engine and gearbox

• Condition: Well-preserved, includes critical performance components

The S14 engine is world-renowned for its free-revving character, racing heritage, and robust construction. With just 40k miles, this unit offers an excellent foundation for collectors, restorers, and performance enthusiasts alike.

Gearbox Details

• Transmission: Getrag 5-Speed Manual

• Mileage: ~40,000 miles (same as engine)

• Compatibility: Designed for the E30 M3 but adaptable for other E30 builds

• Condition: Smooth shifting, inspected and ready for installation

BMW’s legendary 5-speed manual offers precise gear changes and bulletproof reliability, making it the perfect match for the high-revving S14 engine.

Included Components

This package is more than just an engine and gearbox—it comes with essential supporting parts that add both value and performance:

• Air Box: OEM intake setup for proper airflow.

• Exhaust Manifold: Ensures correct fitment and exhaust flow.

• Flywheel: Balanced for smooth operation.

• Driveshaft: Direct compatibility for E30 M3 fitment.

• ECU with Dinan Chip: Performance upgrade for improved throttle response and power delivery.

These extras make this a turnkey powertrain solution rather than a bare engine, saving you time and cost in sourcing individual components.

Performance & Heritage

The BMW S14 engine is derived from BMW’s Formula 1 and touring car racing technology. It powered the E30 M3 to countless victories in DTM, rally, and international touring car championships. Its high-revving nature, combined with the lightweight E30 chassis, made the car one of the most beloved driver’s machines ever built.

Collectors and enthusiasts prize the S14 + Getrag 5-speed combo not only for its performance but also for its historical significance. With low mileage and supporting components, this package is an investment in both driving pleasure and authenticity.

Compatibility

This engine and gearbox package is designed for the 1988 BMW E30 M3 but is also suitable for:

• E30 restorations seeking an authentic M3 powertrain

• Performance builds using OEM+ BMW components

• Collectors looking for rare, low-mileage S14 setups

Whether you’re restoring a US-spec M3 in California, reviving a classic in the UK, or sourcing OEM parts for a collector build in France, this complete engine + gearbox setup is the perfect solution.

Why This Package is Special

• Low Mileage: Only 40k miles on both engine and gearbox.

• Complete Setup: Includes critical supporting components (air box, driveshaft, ECU with Dinan chip).

• Performance Upgrade: Dinan chip enhances responsiveness and unlocks additional power.

• Collector’s Value: Authentic E30 M3 drivetrain—rare and increasingly valuable.

• Turnkey Solution: Ready for installation or rebuild, saving sourcing hassles.

The 1988 BMW M3 Engine and Gearbox (S14 + 5-Speed Manual) is a rare opportunity to own one of BMW Motorsport’s most celebrated powertrains. With low mileage, complete components, and a Dinan performance upgrade, this package is the perfect choice for restoration projects, collector builds, or performance upgrades.