Thunder Mfg.'s adapters are designed for performance. We also strive to make our products easy to install and use. Note that when changing your airkit you will need to use an electronic fuel control system. If you already have a Powercommander you must remap it for the Thunder Airbox. Likewise if you have a Lightning FI or similar your settings will need to be adjusted accordingly. Please feel free to contact us with any questions.
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