Reduces in-cab drone
"Has dramatically reduced the drone in-cab. The exhaust tone is noticeable but not obnoxious."
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The MBRP 5" Armor Plus Quiet Tone muffler is a high-flow spiral louvered core muffler built to reduce drone, delivering up to 10% dB reduction versus a regular performance muffler.
Overall rating: 5.0 / 5 from 4 reviews.
Review topics: [tone, drone].
"Has dramatically reduced the drone in-cab. The exhaust tone is noticeable but not obnoxious."
"Got this after 2 years of running the 5" mbrp straight pipe. Made the idle much quieter (happy neighbors) but still has a refined tone and sounds great when you put your foot down. Also cut down highway drone significantly. Already having the MBRP exhaust made this a super easy install. Literally just unbolt the section of pipe from right before the turn up at the axle and swap it with the muffler."
"Helps cut down on the sound for sure"
"T&D 21 6. 7 Powerstroke with 5” straight pipe sounded beautiful but I felt disrespectful in nice neighborhoods. Added this and was amazed at how much it cut down on drone and sound, maybe a little too much. Would be nice if it was 4 inches shorter for a tiny bit more noise. But now I have a nice civilized truck again."
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