Mid year 2015 Dodge changed from the tightly wound flat spring pictured on the right to a more robust second generation spring pictured on the left. The newer design was to put more air space between the coils to keep the spring cool and prevent breakage when attached to the hot OEM exhaust valve. The kit and installation video were both designed around this newer generation of spring. If you have the first generation flat spring on the right, discard the nylon spacer to each of the mounting screws and replace with a 10/24 steel washer provided. Draw each mounting screw down lightly and evenly with hand tools. Once the mounting screw nut snugly contacts the base plate, 1/4 - 1/2 turn final torque is sufficient. Do not over tighten.

Widebody Challenger Splash Guard information:

​​Trunk mount style simulator kit mounting information:

The installation instructions for this kit were designed around the Challenger model. However, Charger owners can utilize the wiring harnesses we provide as well as the hardware to develop their own custom mounting location. Click the link below to download the trunk mount style installation instructions.


Reduce rock chips and dings from those uncovered monster Challenger Widebody tires! Click the link below to download the splash guard installation instructions:

Clamp style simulator kit mounting information:

​​NOTE: Gone are the wire ties from the original video! We now use mounting clamps on our standard kit!! No longer do you have to put up with the computer in your Dodge keeping your vehicle quiet under varying conditions by opening and closing the electronically controlled restrictive exhaust butterfly valves located just in front of the rear drive axle on the driver and passenger side exhaust pipes. Until now, simply disconnecting the wire to the active exhaust valve motors or removing the fuse generates fault codes and illuminates the check engine light! Frustrating! This simulator kit was developed to mimic the OEM mechanical exhaust valve and solve this problem. You simply remove the driver and passenger side OEM exhaust valve motor and install them on to the simulators. The simulators open and close stop points are specifically calibrated to match the OEM exhaust mechanical valve. The computer therefore thinks the exhaust valve is operating normally and generates no codes or check engine lights thanks to the simulator! A red lock pin is then mounted to the OEM exhaust valve keeping the restrictive exhaust butterfly open at all times. You are now in control of the full roar of the exhaust 100% of the time and bypassing the control by the vehicles computer. That is how a hot rod SHOULD be! Installation is easy thanks to the video below!


Gone are the wire tie mounts as shown in our debut product video. By popular request we changed over to a clamp mounting system for our base model simulator kit. Click the link below to download the clamp style mount installation instructions:

Read the following tech update information below, BEFORE installation of your AES actuator motors to the simulators.