typical induction kit then...i seen in another forum (tdisport) after doing a google search someone had fitted some kit and wanted to know what else he could do, but anycase he said...
"so i have the 1.9tdi 100pd (100bhp) mk4
i have the Pipercross Viper Induction Kit get the air in a bit faster (soon as it went on it got a bit more power )
and Milltek Hi-Flow catalyst/downpipe for
Ibiza Mk4 1.9 TDI 130/160 & Fabia VRS"
Do you think he wouldve had problems with this?