Electronic Muffler FDR F1, its sound is very melodious. It fits Jeeps, Sierras, Silverado, 4-cylinder Cerato, Elantra, and Lancer. It fits all cars that have only one muffler. It comes with two new remotes and the muffler control unit to open and close. I used it for only 3 months with very light use. The muffler valve is intact and has no rattling. Guaranteed to have no leaks. The welding is laser stitch, excellent work, and very clean. It's for sale by offer. Serious buyers only, please. I won't disappoint serious buyers. Contact via private message, public messages will be ignored. Contact via private message, public messages will be ignored.