Terms & Use

Technical information for planning and education—not a warranty, service manual or engineering approval.

Use of information

Vehicle modification can affect reliability, emissions compliance, insurance, road legality and safety. You are responsible for verifying that parts, procedures and modifications are appropriate for your exact vehicle, location and use. Measurements should be confirmed on the actual car before fabrication or purchasing non-returnable parts.

No performance guarantee

Horsepower, fuel-flow, budget, fitment and drivetrain calculations are estimates based on user inputs and simplified models. Real results vary with calibration, component condition, environment, manufacturing tolerance, test method and installation quality.

Trademarks and independence

Nissan, engine-family names and other marks belong to their respective owners. 240-SX.com is an independent reference and is not sponsored, endorsed or approved by those manufacturers unless a page explicitly states otherwise.