Check out this website, on a maybe soon to be available for the NTB and variants;
http://scaryfastracing.net/pn-info.html
Have emailed these guys for information regarding a product that might fit our bikes, that they use on dirt bikes, that use CVK carbs.
It is a carb intake splitter that this company make for dirt bikes and Harley CVK's, this product produces more power and torque at part throttle openings.
Someone on the RAT Forum fitted splitters in his K&N pod filters on his Thruxton
Cheers.......... Agro