EDIT: Since learned this is stage 2. Stage 1 is drilling holes. Stage 2 is removing first set of baffles.

Removing the first stage of the baffles in my exhaust on my 2007 Yamaha Roadstar stock exhaust. Made a HUGE difference!

Hole saw:
LENOX Tools Hole Saw, Bi-Metal,... [ Ссылка ]

Burr Bit:
Tungsten Grinder Carbide Burr 1/4" Shank SB-5 Double Cut Die Grinder Bits And Rotary Bits - Cutting Burrs For Fordom And Dewalt Die Grinder Accessories, Milwaukee Wood Carving Metal Working [ Ссылка ]

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