Audi A4 B7 RS, S4 Brisk racing spark plugs are designed for gasoline and Brisk silver are designed for alternative fuels like high octane gasoline, LPG, CNG, GPL, Methane and alcohol based fuels.
The B7 is the revised version of Audi’s A4 B6 model. The revisions included slight if not cosmetic changes to body and interior, some suspension but mainly drive trainto keep inline with recent emission changes. Most engines were now FSI or TFSi, direct fuel injection and with or without turbo. Range topper was the naturally aspirated A4 RS with 4.2L and 309kW