10/07/2026
Still running stock on your race bike? This KTM RC 390 went from factory exhaust to a GPR Furore Nero β the sound speaks for itself. Customer sent us these shots from the track to the garage.
Shop the GPR Furore Nero for your RC 390 from Sixty61: https://www.sixty61.com/products/ktm-rc-390-2015-2016-exhaust-gpr-slip-on-furore-nero