Based on their popular Super Turbo muffler, the Hemi version is ideally suited for heavy duty applications such as tow vehicles, motorhomes, etc. Thanks to the oversized flow tubes and all-aluminized construction, heat and backpressure are dramatically decreased while the heavy duty internal matting keeps sound levels to a minimum. Perfect for the long haul. Non-directional muffler. Case size: 4-1/4'' tall x 9-3/4''wide x 20'' long.