GPR Exhaust - Albus Evo4 Slip-On for Ducati Monster 821 - 2017 to 2021 Muffler with:dB Killer-Link Pipe-Catalyst careful and rotation-proof attachment on

careful and rotation-proof attachment on the frame

advanced aerodynamics

Keep your bike racing-ready with this approved slip-on exhaust

Dimensions: 5/8" (width) x up to 42" (length)

DNA Fcd air filter flow: 172

GPR Exhaust - Albus Evo4 Slip-On for Ducati Monster 821 - 2017 to 2021 Muffler with:dB Killer-Link Pipe-Catalyst careful and rotation-proof attachment onGPR's ALBUS silencer series has an aluminum body and CNC machined Avional Caps. The exhaust has a ceramic treatment, that can withstand high temperatures. It has an elliptical shape with measurements of 90 x 120 mm. Product Features SOUND: Upgraded sound from stock exhaust PERFORMANCE: Upgraded performance from stock exhaust QUALITY: Italian made with high grade welding WEIGHT: Lighter than stock exhaust Technical Specifications Shape: Oval Body