Rotary Performance Options - 3 Rotor exhaust Sleeve talk & Upgrading exhaust leaves on 20B or 13b

www.kylemohanracing.com/
ebay
www.ebay.com/str/gokmr

[@fourfive55555]

Just bought a hybrid exhaust flange from your ebay store been following your advice while building it so thanks for that too

[@ClwnJuNkY]

Its crazy my bros used to just remove them and leave them out back end of the 90s early 2000

[@erikwahlstrom7826]

Why is there a hole in the sidewall of the exhaust sleeve?
Why are the two holes in the rotor housing below the exhaust port?
Erik