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Your cart is empty.MBRP R2009 MBRP is proud to introduce high flow aluminized resonators to the ever growing line of performance exhaust components. Great for the muffler shop installer who bends custom exhaust systems, these resonators can be used on many custom applications, from Hondas to Hot Rods. Take the edge off any performance system with an MBRP Diesel Resonator. This high flow resonator will help reduce that annoying interior resonance without compromising performance. The compact design allows you to install this resonator with virtually any system on the market. Reduce the sound level, not the sound quality.
Donnie Urba Jr
2025-07-31 14:05:37
Installed this and new 4 inch mbrp exhaust on my 2004.5 dodge ram 3500 cummins. It's perfect. Sounds good. Minimal cab noise and no drone. Had a silver line exhaust before. Was way to loud for a everyday driver and family. Gonna make hunting and fishing trips more enjoyable.
Ggarcia6493
2025-06-23 18:49:06
Installed this in my 2016 f150 to quiet down the mbrp exhaust i purchased. I had bought the exhaust strictly for mpg increase purposes so i wanted it to be really quiet. But when i installed the exhaust originally, it was a bit loyd for my taste.I ordered this add on and it fits perfect. Just had to cut the pipe, slide on and use the provided clamps. Now it sounds great. Deep sound when idling, not so loud when accelerating. Yet it has a wide open 4" piping all the way through.
James R.
2025-05-24 11:50:33
Didn't do as much as I would like to
Garry Kubena
2025-05-15 18:05:36
Love it works great with the aggressive MBRP muffler tamed it down!
Ron H.
2025-04-17 18:02:37
Had 4inch straight pipe all the way out the back when I bought the truck. Was pretty loud under load. Installed this resonator, doesn't change the the tone much at idle but now I can hear myself talk while giving it throttle. There is no "in" "out" stamp on either side of the resonator and I've read of people installing them either way. Installed mine so the resonator is "catching" the sound(you'll see when you look inside) so it would be quiet as possible
Sherman
2025-04-02 10:06:54
Very disappointed with the whole mbrp company. Should not make an exhaust for 6.4 with the horrible drone that comes with it.
mike m.
2025-03-26 11:33:59
I run 6" dual stacks behind the cab on my diesel truck, the drone finally got to me on long drives. Now I can hear others talking to me again and it still has a nice tone without the drone. Very happy with it. The resonator can be installed either way but I opted to install with the inside openings towards the front, probably slightly quieter but exactly got the result I was looking for.
scott
2025-02-16 12:52:01
Quieter down the cabin drone about 40%. I’m running a 4†Heartthrob exhaust on my F-150 ecoboost.
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