Aprilia RSV4 R aPRC Arrow GP Slip-on exhaust system with BiGS-shop

Aprilia RSV4 R aPRC Arrow GP Slip-on exhaust system.

[@Omen1911]

rly nice sound.. love it..

[@rynpaulbert]

Race ECU installed with your exhaust?

[@mikef1411]

my L-Twins sounds nice but not V4 nice :3