I've thought about doing that before as well
You can probably route it to the front somehow to gain maximum ramair effect...
I doubt it will make any difference on the TDi appart from making the turbo whistle louder
Hardly any performance gained when ugraded to green panel + PD 160 intake
ramair?! do you think you own a bike or what?
I like the idea of adding another pipe into the system, but I imagine ultimately the bore of the pipe from airbox to turbo is what dictates the airflow - not the intake pipe (or 2 ) itself
My 1976 Suzuki GT380 has Ram Air as standard