SoundRacer Street Racing Engine Simulator
After an initial calibration and a little fine tuning, the SoundRacer senses your engine’s RPM by detecting the voltage increase in the cigarette lighter. It then produces the equivalent RPM sounds from a Shelby Mustang engine via your car stereo system. SoundRacer works great on most makes and models, but just to be sure, you can check the compatibility list here. $34.99
Makes your boring car sound like it has a Shelby Mustang V8 engine; Plug the SoundRacer into your cigarette lighter; Easy to calibrate and fine tune to work with your car; SoundRacer detects the RPM of your car using the voltage increase in the cigarette lighter and plays the appropriate sounds via your car stereo.
Works on most makes and models, but you can check the compatibility list here.