Honda's L15B7: The Legal Performance Swap That's Redefining Engine Upgrades
The L15B7 engine swap represents a significant evolution in Honda performance upgrades, offering a compelling combination of power, efficiency, and emissions compliance.
The L15B7 stands out for several key advantages:
- Delivers over 235 horsepower at the flywheel
- Features advanced technology including turbocharging and direct injection
- Offers improved fuel efficiency compared to older engines
- Maintains lower emissions than B-series and K-series engines
- Can be BAR-certified in strict states like California
White Honda Civic with red accents
Key Compatibility:
- Fits multiple Honda platforms including:
- All three generations of Honda Fit
- 1992-2000 Civic
- 1994-2001 Integra
- Honda CR-Z
Honda engine bay
Required Components:
- Engine harness
- ECU
- Electronic pedal assembly
- EVAP system from donor vehicle
- Mounting kit (available from Hasport)
- Conversion harness (available from JDI)
Performance Benefits:
- Over 200 wheel horsepower
- 215+ ft-lbs of torque
- Additional 40hp potential with flex fuel compatibility
- Improved power-to-weight ratio
Honda Civic Si 1.5L turbo engine
Real-World Testing: A successful swap into a 2015 Honda CR-Z demonstrated:
- 100-pound weight reduction
- Double the original power output
- BAR certification achievement
- Improved overall performance
Civic SI dyno: 91-gas vs E85
Honda CR-Z power graph on 91-octane
L15B7 engine torque on 91 octane
Future Support: Hasport plans to expand compatibility in 2025 to include:
- 2001-2005 Civic
- 2006-2011 Civic
- 2012-2015 Civic
Hondata Flash Pro device
The L15B7 swap represents the next evolution in Honda performance, combining modern technology with impressive power gains while maintaining emissions compliance and fuel efficiency.
White Honda CR-Z parked outside
DSPORT magazine subscription gift card
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