I don't have any solid proof of this.
Though my dealer (who could be full of poop, but I know him out of work and he isn't a liar) said the HRC kit gives a 13% gain throughout the band. and it doesn't void warranty.
Though my dealer (who could be full of poop, but I know him out of work and he isn't a liar) said the HRC kit gives a 13% gain throughout the band. and it doesn't void warranty.