MINI R52 R53 JCW Fuel Injector - Set Of 4

Upgrade your MINI with the MINI R52 R53 JCW Fuel Injector - Set Of 4, designed for enhanced performance. Whether you're tuning your W11 Supercharged engine above 200HP+ or replacing injectors in JCW engines, these OEM-designed injectors deliver reliable fuel flow and efficiency.

Key Benefits:

• OEM design ensures perfect fit and function
• Suitable for W11 Supercharged engines with tuned setups
• Direct replacement for JCW engines in R52 S and R53 models
• Features a two-hole 380cc design for optimal fuel delivery

Bavarian Autosport served the needs of BMW and MINI enthusiasts from 1974-2019. In 2019, ECS Tuning acquired the Bavarian Autosport brand, committing to continuing the tradition of excellence Bav Auto is known for. Over the years, Bav developed their own brand of parts, accessories and upgrades. A lot of these parts are engineered and built by OEMs (Original Equipment Manufacturers – companies who make original parts for BMW, MINI, and other European marques). Just as MINI, we work with a variety of manufacturers in Europe, Asia and North America. In many cases, we have sourced parts that are superior to Original Equipment.

A lot of time and resources have been put into developing and evaluating these products, as well as the companies who produce them. We stand behind every product we sell. If any product fails to meet our standards — or our customers' expectations — we won't sell it, and we're certainly not going to put the Bavarian Autosport name on it. In fact, we're so confident in the quality of these parts that we back every Bavarian Autosport brand part with a 2-year warranty.

This is a complete plug and play solution to replace your stock Low-Pressure Fuel Pump (LPFP) with a new E85 certified bucketless assembly.

This solution provides up to 25% more flow than our standard Stage 2 LPFP upgrade and up to 150% more flow than the stock pump.  

This pump will support up to 550whp running 85% ethanol and 600whp running 50% ethanol. 

The Stage 2 bucketless kit includes the following:

• • A custom anodized billet fitting for the pump output and stock fuel line connection.
  • Our custom billet aluminum anodized bracket for the pump and float assembly
  • Two cotter pins to secure your float assembly
  • A new E85 compatible Walbro 450 pump
  • Spare vent tube clip
  • A new Walbro filter

If you still need more flow, the Stage 3 upgrade is also available and can be added to your Stage 2 bucketless pump.

The Stage 3 upgrade kit includes:

• • A complete plug and play solution by simply adding the secondary module
  • Our custom billet aluminum fitting to run both pumps in parallel
  • A new E85 compatible Walbro 450 pump
  • Wiring harness for the secondary pump
  • Spare vent tube clip
  • A new Walbro filter

• Recommended accessories:
  • Lock Ring Removal Tool
  • Hobb's switch 
     
• NOTE: These kits include a basic filter assembly.  When using this filter, running the vehicle under low fuel conditions can cause fuel starvation issues. If you do hard straight line accelerations when you have less than 1/8 tank of fuel, we would recommend running our standard Stage 2, 3, or Stage 4 pump.  In addition, if you intend to use this for road course applications, you may see starvation issues when running less than a half tank and doing long high G right turns.  Again for those applications we'd recommend one of our standard pump applications.

This is a complete Low-Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one.  The new Walbro 450 pump provides approximately 100% more flow than stock and this assembly can be purchased one of three ways to meet your needs.

• Trade-in:
  • This option allows you to receive a rebuilt/upgraded stock bucket with a new Walbro 450 pump, filter, and fittings to swap out your stock LPFP assembly.  A $150 core deposit is included in the price that will be refunded when we receive your *stock bucket.
• New Build:
  • This option includes a new LPFP bucket that is upgraded with a new Walbro 450 pump, filter, and fittings.  No core deposit is required but you are eligible for a core refund of $50 should you elect to return your *stock bucket.

Both options include the following:

• A complete plug and play solution by simply replacing your stock bucket
• A new E85 compatible Walbro 450 pump
• A new Walbro filter
• A custom fitting that is tuned to optimize the venturi and pump output
• Spare vent tube clip
• Flow testing prior to shipping
• Recommended accessories:
  • Lock Ring Removal Tool 

 To be eligible for a core return, the bucket must be completely stock and undamaged. (Pump itself does not have to be functioning) 

+ International customers:  Due to different emissions requirements, the top portion of your fuel bucket (top hat) is different and doesn't have a large vent tube connection.  For this reason, we are no longer sending the top hat to international customers as this often causes confusion.  Those customers will simply re-use their current top hat when installing their Stage 2 pump.

- All Stage 2 assemblies are stock buckets that have been rebuilt and may show signs of being disassembled and rebuilt.  They are all flow tested and verified before being shipped.

This kit is designed to enhance performance by adding six supplemental low-pressure fuel injectors, capable of supporting 1000+ WHP on E85 and similar high-performance fuels.

Crafted with precision, the manifold spacers are CNC machined and anodized to ensure durability and prolonged service life. Each kit comes complete with all necessary installation hardware, a gasket set, and a plug-and-play fuel line adapter for seamless integration.

The Elite kit stands out with its sleek black anodized finish and includes an additional return port, an upgraded fuel line, and enhanced machining to accommodate a wider range of applications, including the BMW S55 engine.

A port injection controller is not included. This is required for a complete installation.