Hey guys and girls, I have a 1.9 tdi 115 b5 a4, remapped with various other mods. I've noticed more black smoke recently which I'm assuming is a clogged air filter as I'm due a service, anyway I was looking under the bonnet and saw how small the air snorkel to the air box is. Better airflow should mean better combustion, meaning less smoke and better performance no? is the stock air snorkel capable enough for a remapped tdi or is it possibly causing a restriction? Would a pd130 air snorkel fit onto my 115 air box? Any help appreciated.