Thunder Monster Baffles

[socwkbiker]

In an attempt to get a little more low end torque and enhance performance a bit, I'm looking into Thunder Monster Baffles. I vaguely recall that someone posted something here about them, but I've slept since then.

Is anyone running with these baffles? If so, what are your thoughts on them?

[jestephens]

I had them for a while and they do sound great. I posted a vid on youtube regarding the baffles, but I'm not sure how much you can hear the difference there:


Other options are Torque Cones, or I began to experiment with a piece of plumbing too but didn't mess around with it too much before moving on to some Screamin' Eagle muffers I picked up cheap. My hopes for the plumbing was to find a cheaper option to share with everyone who, like me, had reservations about spending $80 on something that looks so simple. ;)
The picture below is (right) Monster Baffle, (Left) Copper plumbing fitting.





The monster baffles are probably the most expensive option . . .

[VulcanE]

Mike (Classic1) was running them, and they were the inspiration for me when I designed the "Ultimate Baffle", A HD friend of mine has the "Rush" slip-ons (man,,, do they sound good), and I basically crossed the two to get the UB. The "Thunder-Monster does change the tone of the exhaust note, but they are designed to run in pipes with no baffles.

[socwkbiker]

jestephens, what are the sizes and where did you get them?

VulcanE - does your UB give the same loud sound as a debaffled pipe? And how much is it? And will it fit Vance and Hines?

[hammer]

The "Thunder-Monster does change the tone of the exhaust note, but they are designed to run in pipes with no baffles.

I got a copy of the UB design and was struck by the similarity with Thunder Monsters which I have seen before. My question is, can you load the TMs at the outlet end of a V&H pipe with baffles out? I realize that playing with back pressure affects performance too. It's like a 2 into 1 usually gives better performance over shorts or straights but folks seem to go for sound.

[classic1]

Hey SWB, the TM baffles that I have are ones that I had left over from when I had my 1500 classic with V&H longshots. They are 2-1/8" dia and fit at the end of the longshots where the V&H baffles were. So I bought 2-1/4" exhaust pipe and made internal pipes the size of V&H longshots so that the TM's would fit. I also had to make a "doughnut" to fit the ID of the baggers and a necked down pc for the other end similar to jestephens copper pc. It's like having longshot mufflers inside of the baggers.

[hammer]

Yup I actually got all that but how did they sound?

[Netnorske]

Originally Posted by SWB,voices tell me evil things

jestephens, what are the sizes and where did you get them?

VulcanE - does your UB give the same loud sound as a debaffled pipe? And how much is it? And will it fit Vance and Hines?

Holy Cow SWB.....you've been more than asleep....I'd say you've been in a COMA for the last year.... !

[classic1]

If you go to the "nomad garage" section and go to page 36, there's a link and discussion about different baffle sounds. The link also has dk dixie"s UB sound clip too and pics of the internal pipes that I made.

[AlabamaNomadRider]

I was thinking the same thing Netnorske.

[jestephens]

The UB's are most definitely the easiest to install!!!!

Regarding the copper pieces. I got them at Lowes, and I'd be lying if I told your I remembered what size they were. Right now, I'm all packed up to move, and our moving date just got pushed back a week. I'll look/dig a bit and let you know what I find.

-Jay

[jestephens]

Originally Posted by jestephens

The UB's are most definitely the easiest to install!!!!

Regarding the copper pieces. I got them at Lowes, and I'd be lying if I told your I remembered what size they were. Right now, I'm all packed up to move, and our moving date just got pushed back a week. I'll look/dig a bit and let you know what I find.

-Jay

Found it!! ;)

1-1/2" to 1" reducer. (not a coupling)

Meaning: The 1-1/2" side is the same size as a 1-1/2" pipe, and the 1" side fits over its respective pipe.

As you can imagine, there are other sizes available if more, or less, restriction is desired.
I think it's still worth playing with, but undoubtedly agree the UB or some sort of stock-baffle shortening is the easiest to install, or modify later.

[socwkbiker]

Originally Posted by Netnorske

Holy Cow SWB.....you've been more than asleep....I'd say you've been in a COMA for the last year.... !

Of course I've been in a coma! Didn't you hear me snoring??? LOL