I just replaced the radiator on my b7100, I spent the extra $20 for a factory one instead of aftermarket. glad I did because it came with a new hydro cooler also. well now I want to change out the rubber hoses that connect the tubes to the cooler. would anyone know what size they are as $20 for a 2" length of rubber hose seems a little goofy. there's gotta be something at napa I can get cheaper. thanks.