Brands BMW
Product Code: SP-INBMW-DI
Availability: In Stock


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The Piezo DI injectors used on direct injected BMW motors are one of the highest flowing DI injectors available on the market. Even though they outperform solenoid type injectors, they are more susceptible to flow issues caused by debris in fuel. This often times causes an injector to get stuck open even though the injector is mechanically and electrically good. A stuck open or out of spec injector can cause dangerous operating conditions for your BMW motor by causing rail pressure issues and starving other injectors off of fuel inducing lean conditions even when the car is built and tuned to perfection. The BMW Piezo injector cleaning service we offer allow you to test your injectors through a test program that mimics actual operating parameters of the injectors at the pressure they run on the actual car. We are able to test the injectors at upto 400 bar pressures at varying pulse width with our specialised testing equipment. This is not the same as testing and flowing these injectors at low pressures like some vaporware services offer. You would recieve a full analysis report with all the test results through this service at various operating pressures and pulses.

*The Price is for a set of 6 injectors

*Please include your order number in the package being sent to us. If there is no identifying information, package will be sent back without testing. 

*All existing Spool customers will recieve a 10% discount on this service. Please email with your high pressure pump order number to get your discount code.

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