This is Pat Mahoney, our top knotch Aprilia tech, starting a Factory RSV4, just after the installation of a Leo Vince slip on. When the bike is put into gear a butterfly valve opens in the exhaust (part of the original section) and the reverberations of the V4 can really be heard. Blip the throttle, and all hell breaks loose. Enjoy..
u are gay if you dont like this
TheRonaldo666 4 months ago
leo has that special growl-rasp compare to akra exhaust....
fatdoi003 2 years ago
sounds beastly!!!
dsm1098 2 years ago