The CarBahn B58 engine is designed to boost the strength and performance of your BMW engine, particularly for tuning applications. Rated for up to a 50% increase in torque over stock, this engine upgrade features Carrillo forged racing rods, CP forged racing pistons, and high-performance valve springs to handle higher boost levels. The engine also undergoes blueprinting and balancing to ensure optimal performance and reliability.
CarBahn's B58 performance engine offers a stronger and more affordable alternative to the BMW OEM factory engine, providing exceptional durability for high-performance tunes. Backed by Steve Dinan’s 46 years of experience in building championship-winning racing engines, including multiple victories at the 24 Hours of Daytona, this engine is engineered for maximum reliability and power. The CarBahn BMW B58 engine tuning is both stronger and more affordable than the BMW OEM factory engine.
All CarBahn engines are backed by a two-year warranty and are built to the highest standards. To ensure the best quality, the core must be a complete factory engine (from oil pan to valve cover) and meet specific acceptance criteria.
Engine Core Acceptance Criteria:
- Must be a complete factory engine.
- Block and heads must be free of holes, cracks, and damage that can’t be repaired.
- No bore or thrust surface damage, and journal surfaces must be in good condition.
- Additional charges may apply for components that cannot be repaired, including valves, crankshafts, camshafts, guides, ValveTronic, and Vanos mechanisms.
The CarBahn B58 engine delivers a reliable and cost-effective solution for high-performance enthusiasts looking to push their BMW to the next level.
Warranty & Additional Information
Our engines are very strong and can often be very reliable even at power levels above what is recommended. The durability usually depends on the quality and the reliability of the tune and other aftermarket components added to the engine management system.
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Engines with CarBahn Software Tunes
All engines listed with a stage number are designed to be road car engines and are covered for 2 years, 24,000 miles providing they have a CarBahn tune and there are no other parts on the car that have caused a premature failure. -
Engines with Another Company's Tune
All engines listed with a stage number are designed to be road car engines and are covered are covered for 1 year, 12,000 miles providing they you stay under our recommended torque limits. Torque limits are indicated on our web site. Warranty does not cover failures from the tune or aftermarket fuel injection components that caused the failure. It is CarBahn full discretion to determine cause of failure. -
Racing Engines
Racing engines are designed to be raced and are covered for materials and workmanship only. Racing engines should be rebuilt periodically based on run time or mileage. Warranty does not cover failures from the tune or aftermarket fuel injection components that caused the failure. It is CarBahn full discretion to determine cause of failure.