Bypass your fuel injector (ballast) resistor. Features flush design. No solder - Crimp connections are internally linked and sealed. Suitable for EVO 4-6 (CN9A, CP9A) and EVO 7-9 (CT9A). For use with high impedance injectors (highZ) injectors such as FIC. If you have any questions about this product you can contact us on the Facebook page. If you want to order 10 or more, contact us for a discount.