The MGP Growler exhaust for the Aprilia RS 600 packs a BIG sound and plenty of benefits into a small package with an affordable price The GrowlerÆs small-canister design and matte carbon fiber finish are inspired by the aesthetics of modern MotoGP bikes for a polished, yet minimalist appearance spawned at the racetrack A special surfacing process gives the stainless-steel end caps a titanium like luster and the small details like black anodized canister rivets complete the stealth appearance Manufactured in Italy, for authentic, European MotoGP character, the GrowlerÆs no-bones-about-it race-inspired appearance also offers a significant weight reduction from Original Equipment exhausts Great looking, awesome sound, affordable price, and easy to install 4.8 lb vs 16.05 lb stock û saves 11 lb Stainless steel end caps with titanium like luster No re-mapping necessary Made in Italy For closed course competition only.. EXHAUST APRILIA RS660 GROWLER