There is nothing wrong with the DMC air intake box or filter. Based on the information provided to me the K&N filter company doesn't currently offer a filter for the DeLorean. The instructions for installation of a K&N filter for another car, utilized for the DMC, is to install the filter upside down. Does this upside down installation deviate from the intended purpose of filtering out the air in the intended sequence? In addition, I had the K&N filter set up professionally installed on my Jet Ski's, then removed. (K&N makes marine applications, etc.) The amount of water that passed through the filter down into the head caused the motor to experience "water lock." The engine replacement was not covered under warranty. $,$$$.00 After doing some research the filter does improve the airflow, not substantially but minimally. No...I didn't submerge my Jet Ski underwater etc. The K&N allows too much dirt, water, etc., to pass through. There are many testimonials on the Internet about the negative attributes of the filter. The only suggestion that I have is if you are using the Renault air filter in the DMC airbox is to replace it with another brand other than the K&N. Sincerely, Mike Pack