This Alpha Competition decat downpipe made from high quality mandrel bent and TIG hand welded T304 stainless steel is a direct bolt on upgrade for the 3.0 TFSI engine of the Audi S4 B9 and S5 B9. With a high manufacturing quality, this downpipe coming with his installation kit is for sure the best bang for your buck on the market.
-270x270.png "ALPHA COMPETITION DOWNPIPE DECAT W/ Heat Shield AUDI S4 B9 / AUDI S5 B9 3.0TFSI")
-270x270.png "ALPHA COMPETITION DOWNPIPE DECAT W/ Heat Shield AUDI S4 B9 / AUDI S5 B9 3.0TFSI")
-270x270.jpg "ALPHA COMPETITION DOWNPIPE DECAT W/ Heat Shield AUDI S4 B9 / AUDI S5 B9 3.0TFSI")
-270x270.jpg "ALPHA COMPETITION CEL FIX O2 LAMBDA MINI CAT SENSOR (UNIVERSAL)")