Design Engineering 050178 Boom Mat Complete Sound Deadening Kit for 4-Door Jeep Wrangler JL (2018-up) - Black

easy to install great product came very fast great

Let’s start off with the install I did remove my top and flipped upside down for easier install. Clean top with alcohol so the material sticks well. I used my Apple watch to measure the db, without the liner and traveling 80mph it was reading 75db, with the liner on and traveling at the same speed it now reads 70db which is pretty good and also took the echo sound when talking to the passenger, the stereo sounds better also, I only have had this liner for the summer time you don’t need to keep your ac on high the cab cools down quickly and maintains cool temperatures, have done a road trip down the Baja and that was the true test all in all I’m happy with the looks and performance of the liner.

Removing the Hardtop without a hoist takes at least 2 people. Everything fit like it's supposed to but the greatest improvement is the temperature. My Infrared thermometer before installation in the sun read 172F inside surface of top, After installation 133F...huge difference.

My main complaint about this item is it’s nearly $400!! For some foam which likely costs $20 and it’s advertised at 1” thick but ONLY the freedom panels are 1” thick. The other panels such as the rear window panels are barely 1/2” thick. I purchased them to enable me to level the run inserts with the frame of the top and sides in order to install some paneling( yes paneling) inside the Jeep. Didn’t really work as planned as the rear panels didn’t line up Since they are NOT 1” thick.

This took very little time to install. Most of that was prep, which is important but the main install was simple and fast. So far these are working well in our hot Phoenix sun. Someone else mentioned that they notices a big difference in their sound system and the Alpine system does sound better with these.