Just scored a D&amp\\;D fatcat on ebay&nbsp\\;with standard, and quiet baffles. Had a thunderheader before, took it off when my pant leg just about caught fire. It was a roll on king, made 93hp / 104tq with Crane 290s and thundercooker but soft in the upper range. Currently running black shortshot staggereds with Andrews 54s and made 88hp / 100tq, but its weak in the roll ons. Everyone seems to swear by the D&amp\\;D, what should I expect with a good tune, and which baffle?

I think the next step is a JET hv 51mm throttle body and stg II airstack.


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I had slightly more torque with the Thunderheader vs. th D&amp\\;D. I thought my TH was weak on the topend too, turns out it was lean jetting!

 

I had the fat cat (standard baffle), and a thunderheader on my 06 dyna 95 build.&nbsp\\; Fat cat made 100hp &amp\\; 104 torque, and the thunderheader made 101hp &amp\\; 108 torque.&nbsp\\; Both had similar characteristics after 3500 rpm's, but between 2000 &amp\\; 3500 the thunderheader kicked it's ***, and the thunderheader sounded so much better.&nbsp\\; That's my opinion, and you'll find different examples with different builds, but this was a comparisson I was wanting to try for a while, and the results are no BS!&nbsp\\;&nbsp\\;&nbsp\\;

 

Hope that didn't sound negative against the fat cat, cause I did really like it aswell (great looking, nice sound, good fit, and respectable power).&nbsp\\; I just have a woody for the thunderheader sound, and it just so happens that it made better power on my build.&nbsp\\;