unfortunately with the 1.4t the only replacement aftermarket drop in ive found was the K&N. not bashing K&N as many have ran them for years with no problem myself included on other vehicles. They do let in more fine particles, thats a side effect of the filtration/air flow balance. I have the K&N intake and switched to an AFE dry flow synthetic for ease of maintenance and better filtration with still good flow as I went with a much much larger filter(more media area equals more flow). However when I was running my stock intake box I just deleted the resonator and installed a K&N drop in as that was the only aftermarket filter I could find.