Cheers Ross im sure i can make something very similar to that, or i could just be lazy and contact dynatwist as someone said and buy one...is that an extra rubber section at the back of the air filter too? or is that an aditional modification?
No problem mate. Everything you see there is in the box when you get your dynatwist (except the cold air ducting).
The pipe at the larger, engine end of the filter looks incredibly pinched, that can't be great for airflow?
Its not pinched in the slightest mate, just the way the light is shining on it.