Carbahn - S58 High Performance Engine B30B (Stage 2) - BMW G8X M2/M3/M4

The CarBahn engine is both stronger and less expensive than the BMW OEM factory engine. The S58 CarBahn engine is designed to improve the strength of your engine if you are tuning your car. Connecting rods are replaced with Carrillo forged racing rods. Pistons are CP forged racing pistons. The engine also comes with ported cylinder head and high-performance valve springs for ultra-high boost pressures. 

The engine is a complete overhaul with blue printing and balancing and designed for an increase in torque of 100% over stock.

Steve Dinan’s engine shop has been building racing engines for 43 years. Those engines have won many championships including three prototype racing championships including 2 overall wins in the 24hrs of Daytona in 2011-2013. You will not find a higher quality engine. All engines are backed with a two-year warranty.

Engine core acceptance parameters requires core must be complete & rebuildable (factory engine, from oil pan to valve cover). 

Block & Heads must have no: 

• Holes or cracks in casting
• Holes or crack in covers
• Bore damage that cannot be honed out
• Thrust surface damage
• Journal surface damage
• Bolt hole damage that can’t be repaired

Additional repair charges could apply for damaged items that are not normally changed during an overhaul and cannot be repaired or serviced

• Valves
• Crankshafts
  
• Camshafts
  
• Guides
  
• Valvetronic mechanism
  
• VANOS mechanism

Engines are built-to-order. Please contact us to verify vehicle info and before ordering. 

Vehicles Supported
BMW M2 
BMW G8X M3/M4, including Competition