SKU: 11587100007 | UPC: 840232701715
BorgWarner Cartridge EFR 6258 w/ Iron Bearing Housing
The BorgWarner EFR 6258 Cartridge with Iron Bearing Housing serves as the center rotating assembly (CHRA) for EFR 6258 turbochargers used in high-performance automotive applications. It fits any vehicle or build equipped with compatible EFR 6258 housings delivering rapid boost response and power from 225 to 440 HP. This cartridge rebuilds or upgrades turbos for street and track use with proven BorgWarner engineering.
Key Features
- Gamma-Ti Turbine Wheels: Low-weight titanium alloy wheels and shaft assembly enable fast boost response across the RPM range
- Dual Ceramic Ball Bearings: Patent-pending cartridge design boosts thrust capacity durability and turbine efficiency at low expansion ratios
- Forged Milled Compressor Wheels: FMW construction surpasses cast aluminum in strength flow and efficiency for consistent power delivery
- Iron Bearing Housing: Provides enhanced heat resistance durability and corrosion protection for demanding conditions
- Motorsport Heritage: Built on BorgWarner legacy from 1952 Indy 500 Le Mans and Nürburgring victories for reliable performance
Product Notes
- Compatible only with EFR 6258 turbine and compressor housings typically T3 flange divided
- Factory balanced assembly requires no additional balancing unless modified
- Special order item plan for 3-7 business day lead time
Installation Notes
- Professional installation recommended.
- Match with EFR 6258 specific compressor cover and turbine housing A/R options like 0.64 or 0.85
- V-band clamps or T3 bolts required based on housing configuration
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | BorgWarner | EFR 6258 Turbo | All Housings |
| 2004-2021 | Subaru | Impreza/WRX/STI | All Performance Builds |
| 2003-2015 | Mitsubishi | Lancer Evolution | VIII/IX/X |
| 2006-2014 | VW/Audi | 1.8T/2.0T Models | GTI/R/A3/S3 |
| 2013-2021 | Ford | Focus ST/RS | All |
Why Choose BorgWarner?
- Over 70 years pioneering turbo technology in global racing series
- Advanced materials like Gamma-Ti and FMW for unmatched response and longevity
- Precision engineering sets industry benchmarks in flow efficiency and build quality
Frequently Asked Questions
- Q: What turbo models does this cartridge replace?
A: Direct replacement for BorgWarner EFR 6258 turbochargers with iron center housing including T3 turbine options - Q: What material is the bearing housing?
A: Cast iron construction handles higher exhaust temperatures and provides superior strength over aluminum - Q: What is the horsepower rating?
A: Supports 225-440 HP depending on turbine housing A/R engine displacement and tuning
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: Special order – ships in 3-7 business days
- Packaging: Protective foam-lined box 14 x 14 x 14 inches
- Weight: 12 lbs





Reviews
There are no reviews yet.