Adjustable Defouler 2.0T
Prevent the P0420 check engine code. Comes with (1) defouler already assembled with the medium fittings.
Out of stock
This adjustable defouler can be used to prevent the check engine light when running catless (P0420) by limiting the amount of exhaust gases the O2 sensor sees.
This defouler is adjustable and have 4 settings, fully open, small, medium and large fittings to change the amount of exhaust gases the O2 sensor sees. Easy to install, easy to change around.