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big city thunder vs stock

5K views 13 replies 8 participants last post by  Diveroger 
#1 ·
Anybody ever dyno the difference between the two? which makes more power?
 
#3 ·
I'd like to know too. I put the Big City's in the swept pipes that were on my JP but really couldn't tell a noticeable difference in performance. It does sound a hell of a lot better though!
 
#7 ·
I will have to check my paperwork to see which one I got and post the part number later. The guy at BCT knew exactly which ones I needed and they fit just fine.
 
#11 ·
I agree the sound is much deeper. I had them in a V&H big shots in my big dog. They are suppose to give you more torque...well in my certain application they did give me alittle more torque but also snuffed me on the HP. So I ended up pulling the BCT baffles out and cutting my orginal baffles to 1/2 the length and just used a thumb type screw at the backt of the baffle (similar to BCT design ) help on back pressure and ..bammm...sounded great got my HP back and added a little TQ . But the BCT baffles did sound good though

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#13 ·
They won't fit in the Victory 'stock' exhaust. They are meant to replace existing "removable" baffles in most aftermarket exhaust. The baffle system in the stock exhaust is not removable.
 
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