Upgrade your R53 fuel system with a set of 4 Bosch performance fuel injectors for the MINI Cooper S R52 and R53. Available in 310cc, 440cc, and 550cc, these injectors are built with genuine internals for dependable performance in street, modified, and racing applications.
As power demands increase, stock injectors become a restriction. A properly sized injector set gives your MINI the fuel delivery it needs for supporting mods, safer tuning, and more reliable performance under load. Whether you are staying mild or stepping into a more aggressive supercharged setup, there is an injector size to match your build.
Each set includes EV14 electrical connector pigtails for crimping or soldering into your existing harness.
Available Injector Sizes
310cc Injectors - Big Street
A strong choice for mild performance builds and lighter upgrades where you need more fuel capacity than stock without going too large.
440cc Injectors - Sport
Ideal for more aggressive street setups and performance builds that need additional fuel headroom for higher airflow and boost.
550cc Injectors - Race
Best for serious performance combinations that demand even more fuel delivery and tuning flexibility.
Features
- Set of 4 Bosch performance fuel injectors
- Available in 310cc, 440cc, or 550cc
- Genuine internals
- EV14 type body
- EV14 Bosch plug
- Excellent spray pattern
- Great linear response
- High impedance design
- E85 safe
- Includes seals
- electrical connector pigtails included
Specifications
- Injector Sizes Available: 310cc, 440cc, 550cc
- 440cc Flow Rate: 42 lb/hr at 43.5 psi / 3 bar
- Minimum Pressure: 29 psi
- Maximum Pressure: 100 psi
- Resistance: 12.5–14.5 ohms
- Overall Length: 65.5 mm
- O-ring Seat to Seat: 48.5 mm
- O-ring Centerline to Centerline: 53.5 mm
- O-rings: Top and bottom, 14.5 mm
Fitment
- 2003 MINI Cooper S R52 / R53
- 2004 MINI Cooper S R52 / R53
- 2005 MINI Cooper S R52 / R53
- 2006 MINI Cooper S R52 / R53
- 2007 MINI Cooper S R52 / R53
Important Notes
- Select the correct injector size before ordering.
- Connector pigtails require crimping or soldering into your existing wiring harness.
- Proper tuning is recommended when upgrading injector size.
