OEM Aprilia RF Velocity Stacks for '09-'15 RSV4-R (AF1-1A007396)
OEM Aprilia RF Velocity Stacks for '09-'15 RSV4-R
These '17-'18 Spec RSV4 RF velocity stacks will get your RSV4-R more mid-range and upper midrange power without the need for ecu remapping.
These shorter front typically give an RSV4-R 3-4 more mid and upper mid range horsepower with crisper throttle response and no power loss at low rpm. Peak power is unaffected.
If you're already replacing the air filter or doing a valve adjustment, these stacks are a cheap and easy performance mod that requires no ecu changes.