ARROW 51509AO Aprilia RS4 125 (2011+) Aluminum Slip-on Exhaust "Thunder" Seats the Arrow GP2 silencers are

the Arrow GP2 silencers are designed for naked and sports bikes

Crafted from billet alloy and leveraging advanced 3D technology

Two removable dB-killers open (diameter: 40 mm)

KTM 890 Duke (2021 – )

Ducati SUPERBIKE 1098 / 1098S / 1098S Tricolore (2007 – 2008)

ARROW 51509AO Aprilia RS4 125 (2011+) Aluminum Slip-on Exhaust "Thunder" Seats the Arrow GP2 silencers areSlip on exhaust "Thunder" for Aprilia RS4 125 by ARROW. More and more new bikes are designed with very small silencers. moreover, these small silencers are also fitted in strange positions: these facts made necessary to use smaller and smaller exhaust systems also in the after market production. For these reasons Arrow decided to introduce in the Street Bikes silencers range a kind of silencer designed in the first time for the Off Road program, again