Internal exhaust mod

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Internal exhaust mod

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06-27-2018, 03:14 PM

tommy583

98 Arctic silver 986

Join Date: Jul 2011

Location: Upstate, NY

Posts: 1,452

Garage

Progress so far.

Both of the holes on top are 3/4 of an inch. The holes on the bottom of the pipes are 1/2 inch on one and a little more on the other maybe 5/8. I had to make the bottom holes smaller so to not drill thru the bottom of the muffler with this bit set up.

Last edited by tommy583; 06-27-2018 at 08:18 PM.

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