How about the differences in exhaust as related to exhaust diameter, length and baffle? Most of us are looking for the deepest sound we can find and rely on websites for sound bytes, which you know never sound like the real thing. If we could understand how size effects sound, we can make a better informed decision on the pipes we buy. P.S. we also still what performance.
Our Friends at SuperTrapp had this to say:
If we’re talking about straight through pipes with no mufflers/baffles then a smaller diameter pipe will give you a snappier sound (high frequency) and a larger diameter pipe will give you a deeper sound (low frequency). Longer pipe lengths lessen the volume of sound and shorter pipes increase the volume of sound. Something to keep in mind is that the human ear is more sensitive to higher frequencies; this means that we perceive these sounds as louder. If a muffler or baffle is added to the equation then the pipe size has only a minor affect on the overall sound. Also, a muffler can alter sound significantly depending on the design. Many technologies are employed in the design of mufflers or baffles. At this point we need to understand the difference between a muffler and a baffle. A muffler is a mechanical assembly that employs multiple components and technologies to reduce sound in an exhaust system. A baffle is a mechanical device used to disrupt sound waves. In most cases baffles are used as a component in a muffler assembly. The term “Baffle” has become common these days because of their use in drag pipes. They’re used in drag pipe designs due to the limited space inside of the pipe. Muffler assemblies are far more complex. These assemblies can incorporate many components to alter sound waves. These components can range from packing materials such as fiberglass, ceramic wool, and stainless wools to perforated tubing, baffle tubes, and baffle plates or any combination of these components. Due to the vast design configurations and their abilities to manipulate sound, there is no hard fast rule that can be given to say how a specific muffler will sound. Unfortunately, as we’ve learned, “you cannot muffle horsepower”. All street exhaust designs are a balance between power and appropriate sound quality. Something else to keep in mind is that the engine configuration plays the biggest part in overall sound. Compression ratios, cylinder heads, cams, and ignition timing all affect the sound output of any given engine.
Wrench Safe, FMH
I bought a 2008 Harley and its real loud.. I looked in the top pipe and there is a baffle and the bottom has none. Do I need to put one in at the bottom to quite it down? Its a bub exhaust.. Thanks in advance
I installed the V & H straightshots on my 06 fxsti , after I noticed it was popping on deceleration and running lean . I thought about putting a bigger baffle in so I removed both baffles when I noticed 2 positions (holes) in the muffler to position the baffle . I reinstalled the original baffles except locating them at the hole further inside the muffler this time and it has cut back on the decel popping by half and bike is running better ,,,! Is this my imagination or are those holes there for that reason ,
I have a question i had to replace the gasketts on my 2012 street glide exhaust pipes im having trouble with my crossover it will not stay in place it keeps slipping out off the connection pipe that goes under the bike
Hi Guys I need some help, I have 2 in 1 exhaust, when I ride the bike last week without notice the slip on came off somewhere, I just realized when I got home. I am going to buy after market slip on muffler but I confused about the size. the exhaust pipe heather that sitting on the bike is 2.6 inch. I mean the pipe hole, I don't know what should I call, what diameter of slip on muffler fit those header? thank you.
2012 fatboy low, how to remove the baffles to make it louder and what effect will it have on the bike
question for the pros-I just bought an '01 Heritage softail classic (not EFI) with Vance & Hines longshot exhaust (ID 2-1/4")..the bike positively roars..I'd really like to quiet it down drastically...seen good review of V&H Super Q baffles but can find their dimensions...can you tell me what the quietest baffle set-up would be for this bike? Got a lot of Senior neighbors and would rather not destroy their "Miracle Ears"
<strong> Ticket 23117 I just bought a 2014 sporster XXL that had the pipes edge cut off and drilled holes in the muffler, sounds great but I’m looking to repair the whole sistem since the bike is heating too much and loosing performance, what would be the best diy solution to this?
A late friend of mine had a new set of Samson shotgun style exhaust system put on his '92 Harley Softail with a 1340 EVO engine and this exhaust came back to about the rear axle point on his bike. He told me that he had torque cones installed and the baffles removed and it sounded awesome. It had a deep low hotrod tone without the hollow open pipe sound that you often times hear with open pipes. It also had a ton of reversion when you let off of the throttle between shifts that I thought gave it that hotrod sound. I've heard that torque cones are a marketing gimmick and that they do nothing for performance but I'm wondering if it at least helps with the sound on an exhaust without any baffles? Even the '06 Dyna Wide Glide I had in '08 had shotgun exhaust(not sure what brand, couldn't find a name on them) without baffles and it still had a slight hollow open pipe sound. His sounded much better and I'm not sure why, I'm wondering if it was the torque cones. Anyway, I'm picking up my new to me '05 Dyna Wide Glide EFI with Vance & Hines Longshots and I'm hoping to be able to closely duplicate the sound of my late friends bike. I don't think it'll have the same reversion because these fuel injected engines don't fall off like a carbureted engine does between shifts. The rpm's seem to drop more gradually than carb models thus eliminating some of the reversion but we'll see how it goes.
I have an '82 fxs low rider with 2" drag pipes that I inherited from my brother. It is a little loud, harsh for my liking. I am not sure of the make of the current exhaust, but would the vance and hines baffles work, or are they specific to the V&H products? Thanks
What's the inner diameter on the tip of the exhaust header pipe of 2012 Fatboy Lo? Need to know to remove the baffles that are inside the slip-ons and add baffles on header instead.