Big City Thunder Baffles for 1 3/4" or 1 7/8" diameter pipes...They have the lollipop. I put them in my pipes for about three minutes and decided they were not for me. I had a lot more low end, but gone was my fishtail deceleration detonation. I'll sell them for half price of new $45 shipped. If you want pics let me know and I will get some. Install was simple. Took about 5 minutes, but it really depends on the pipes you have.

 

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