Build your BMW M54 engine with the 5150 AutoSport Factory+ Rebuild Kit, BMW M54, to handle serious power and sustained high-RPM abuse. Engineered by 5150 AutoSport, this engine build kit is built to the standards demanded by high-performance and motorsport BMW builds.
Key Features
- Designed for BMW M54 engine
- Forged from high-strength, lightweight materials
- Engineered for maximum power and durability
- Precision-machined to exacting tolerances
- Suitable for naturally aspirated and forced-induction builds
- Rigorously tested motorsport-grade quality
- Available in multiple engine options to suit your build
- Supplied by 5150 AutoSport, trusted by BMW enthusiasts worldwide
Product Details
We know that not every driver is interested in the crowded engine bay, power lags, or wear and tear of a turbo conversion. Depending on your racing class and application, turbo may not even be the right choice for your engine.
For the NA BMW M54 enthusiast interested in rebuilding their engine with bulletproof internals, we’re introducing the 5150 Factory+ Kit. A carefully curated, budget-friendly option for those looking to rebuild their Naturally Aspirated engine for years of reliable performance and spirited driving.
This kit includes everything you need to refresh and bulletproof your rotating assembly, and features the best components on the market for modest NA upgrades:
- Wagner Tuning Burnished Head Stud Kit
- Cometic Multi-Layer Steel Head Gasket
- CP-Carrillo Forged Piston Set
- Manley Performance Connecting Rod Set
- ARP Connecting Rod Bolts
- 5150 AutoSport High Performance Rod Bearing Set
- 5150 AutoSport High Performance Main Bearing Set
Please note: All engine modifications should be performed by a qualified professional to ensure a proper and safe installation process and a reliable, optimally performing engine.
Engine Options
- M54B25
- M54B28
- M54B30
Compatibility
BMW M54 Models
- BMW E46 325i / 330i
- BMW E39 525i / 530i
- BMW E60 525i / 530i
- BMW E83 X3
- BMW Z4 2.5i / 3.0i
Why Choose 5150 AutoSport?
- Purpose-built BMW performance engineering
- Components developed for high-power, real-world durability
- Trusted by serious BMW engine builders
- Specialist knowledge of forced-induction and high-RPM builds
Why Buy from R44 Performance?
R44 Performance supplies premium BMW performance and engine-building components trusted by enthusiasts worldwide.
- BMW specialists
- Genuine 5150 AutoSport products
- Fast UK & worldwide shipping
- Expert product support
Upgrade your BMW M54 build with the 5150 AutoSport Factory+ Rebuild Kit, BMW M54 — available now from R44 Performance.
Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.
It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.
We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.
We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.
All in stock products ship the same day if ordered before 2pm GMT
For out of stock items we will contact you with an estimated wait time if not otherwise specified above.
We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy
All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.
PLEASE NOTE
- Orders with both in-stock and backorder or out-of-stock products will be dispatched once all products are available to ship together.
- Contact our sales team if you want your parts fitted to your vehicle at our London workshop.
- Shipping estimates are based on courier delivery times and don't include time to despatch from our warehouse.

