1 3/4″ x 20″ Decibel Killer baffle for 4″ Mufflers

TOCE : DB Killer Baffle for GP Muffler [TP-DBK]

Vance & Hines Quiet Baffle for Eliminator 300 Slip-On Mufflers - 21947 - Dennis Kirk

M4 Exhaust Quiet Insert (Db Reducer) - Sportbike Track Gear

Motorcycle & Harley Exhaust Baffles - Get Lowered Cycles

Motorcycle Exhaust Baffles

Vance & Hines Replacement Baffle For Big Shots / Straightshots / Softail Duals Exhaust - Cycle Gear

Mufflers Baffles Emgo Exhaust

Motorcycle & Harley Exhaust Baffles - Get Lowered Cycles

Pipe Baffle

Replacement Coffman Sound Suppressor/Baffle/DB Killer Kit

They do require a small amount of modifications to fit. All that is required is a hole to be drilled in the back of the drag pipes, Then slide in the baffle and line up the hole drilled to the baffle.

4 x 2 Louvered Core Short Muffler Torque Reversion Exhaust Drag Pipe Killer Baffle Silencer Db-Killer DB-eater for Harley Big Twin Sportster Honda

Designed to fit inside of 1-3/4 O.D. Pipes. This baffle has an O.D. of 1-5/8. A pair of Exhaust Baffles. Muffler inset for reducing noise emission.

1-3/4 Exhaust Pipe Baffle Mufflers Straight Pipes For Harley Electra Road Glide

Fit for: For Dirt Pit Bike Motorcycle Which Requires a 25mm Diameter Exhaust Muffler. Provides deep and smooth sound. Gives your vehicle better airflow and performance. Mouth-shaped outlet design gives your racing motorcycle a fashionable look. This muffler tip can not only reduce exhaust noise, but also can release the exhaust gas safely and effectively. Made of galvanized iron that intend for long service life, anti-rust, can be used for a long term time.