AuDan

Hi,

I have an A4 1.8T 2004. I want to put a diverter or blow off to hear the cool psshh noise :P

Now my friend says blow off causes engine checks and diverter you need to put an intake.

Are those true ?

What's the difference between the two and which should I put ?

Thanks
Dan

Black_RS4

put a diverter valve on.. if you put a blow off valve, you will get check engine lights... your buddy is right...

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sonic

if you want that sound just stay with the DV and get an intake. You will hear the sound!!! Get a chip and it will be a hall of alot louder.