GPR Ducati Monster 900 Dual Slip-on Exhaust "Trioval" (EU homologated) Fluid Tanks Caps Catalysts and collectors diameters have

Catalysts and collectors diameters have been designed to optimize torque compared to the original and other aftermarket exhausts

so we are working on a solution to accommodate the error message on the dash

Take your Yamaha MT-07 to the next level with this DIY fender eliminator

It is not required

GPR Ducati Monster 900 Dual Slip-on Exhaust "Trioval" (EU homologated) Fluid Tanks Caps Catalysts and collectors diameters haveG. P. R. Exhaust Systems "Trioval" dual homologated slip on exhaust silencers kit with double removable dB killer (baffle). Handmade in Italy. Stainless steel link pipe and caps (Aisi 304) Polished stainless steel silencers Tri oval shape, diameter 90x120 mm Weights about 1,55 kg MotoGP & WorldSBK approved Brackets, holders and fasteners included Instruction provided EU homologated Does not require mapping if used in homologated configuration 2 years