Yeah there is, I've imported bits from Americanland quite a few times over the years. 3% duty on car parts, plus the 20% VAT of course.
Unlike a lot of tuners over there, they seem like a very knowledgable and honest bunch. Not many go to the trouble of enlarging the plenum and even fewer use proper velocity stacks. They both take a shed load of work on CAD & flow benching to match to the engine properly.
I was concerned the bigger bore intake runners & deletion of the flaps would kill the bottom end torque, but it would appear to make more power and torque everywhere. I would entertain one if a load of us split the costs on importing some, but it's too much for a single purchase on a whim!