JDM Engineering

Ford Racing GT500 Resonator eliminator kit M-9B659-MSVT Remove the restrictive noise silencer tube Ford installed on your Shelby from the factory and improve air flow while also giving your engine bay a better appearance. The factory Resonator pipe looks like a small muffler attached between your air filter and throttle body, and in fact its just that. Its reducing noise by absorbing some of the air flow, this was done to keep in cabin sound down. But those of you, like us, who are looking for performance will want to upgrade to the Ford Racing resonator delete pipe. This is simple a straight pipe with no baffling inside to disturb or slow down air flow. Adding this item takes only minutes and will help improve airflow on your Shelby GT500 5.4L engine immediately! Fits 2010 Mustang SVT. No custom Tuning needed.

JDM Recommends with this product  also found in this section, Airaid OEM replacement filter 860-399.