Hi, I have a noise pro kite and just bought a blue chip bar from BWS. Probably a stupid question but, do I need to adjust the kite line length at all? I noticed there are 20 cm line extensions on both the inside and outside lines. Thanks in advance.

It's rhe same as the Ocean Rodeo bar, in the bag of Ocean Rodeo bars there's usually a bundle of pigtails, 20cm, 25cm and 35cm (these are included to be compatible with older Ocean Rodeo kites, but not sure about BWS), but it comes with the 20cm pigtails attached as standard. These short pigtails are predominantly there to stop the wear on your main lines from constantly connecting and disconnecting from your kite.
If your Noise Pro kite is designed to fly with equal line lengths normally then you're sweet to go.