The AWE No Check Engine Light Guarantee offers peace of mind against the appearance of Check Engine Lights when products are installed properly and used as intended, on vehicles with no additional modifications (with the exception of other AWE products intended to work with the product in question). No problems, no lights. Easy.

Fitment
2006 Audi S4 Avant
2006 Audi S4 Base
2006 Audi S4 Cabriolet
2007 Audi S4 Avant
2007 Audi S4 Base
2007 Audi S4 Cabriolet
2008 Audi S4 Avant
2008 Audi S4 Base
2008 Audi S4 Cabriolet