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So you're like many and are tired of the noise, or maybe its just your neighbors complaints you're tired of. Either way, the Diamond Eye Big Dog 51" muffler may not be for everyone, but its a great solution for many. Many people have realized the very noticeable increase in sound level and drone when going from a 4" to a 5" exhaust system. Many people like the extra decibel, but some simply dread it, but require the 5" in order to keep EGT's at a tolerable level. If you're the latter, then you need a Big Dog Quiet Tone muffler.
This enormous 51" muffler has the ability to drastically cut down on the interior and exterior sound to create a nearly "sleeper" truck. The only thing we caution those interested in this muffler.....MAKE SURE YOU'VE GOT ROOM FOR IT! Many extended cab short box, as well as other vehicles, simply don't have room for a muffler this long. But if you've got the room and are tired of the noise, install this muffler. It still performs every bit as good as all of Diamond Eye's other smaller mufflers, but with greater sound control.
This muffler is directional, the domed side of the body is the outlet, the lipped side of the muffler is the inlet.
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will this muffler work w/ DE-K4235A-2 or will i still need a section of pipe requiring me to purchase the DE-K4235A instead? 06 mega cab?
You could run it with the -2. Just triple check that you have enough room. Those mufflers are huge.
I have a 2013 Ram 2500 Cummins with a 5"" exhaust. Will this fit in the space under my truck between the drive shaft and frame? Also, what is the return policy if it doesn't fit for some reason??
I would measure at least three times to see if it will fit. If you have a short 6'6' bed more then likely it wont fit. If you have a long bed it may. Check out or returns link at the bottom of our page for return info.
What's end of the muffler is the inlet or what end is the outlet? I noticed one end is indented in and the other is domed out. Thanks.?
The side that is recessed in is the inlet, the domed out is the outlet.
Does it fit on a mega cab short box??
Most of the time there are no fitment issues. We would still suggest measuring under your truck to verify you have the correct space.-TL
Is this a full flow or straight through type? I'm looking for one that's not straight through. I want almost no tailpipe noise on a class 8 truck. Thank you in advance?
This is your best shot at killing as much noise as possible without sacrificing power or flow. This is not a chambered muffler, but it is also not a straight through... best way to describe it is, baffled. -Ben