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Looking for aftermarket parts to modify or upgrade your 1998 Audi A4 with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories.
 IN STOCK 2397NGK standard plugs are constructed for longer life and optimum performance.... NGK Copper Core Spark Plug Box of 4 (BKUR6ET-10) 1997-1998 Audi A4 Base 1998-1998 Audi A4 Avant $47.54 |
 OUT OF STOCK 6458NGK Laser Platinum Series plugs provide high ignitability and longer service life. Laser welded dual platinum surfaces ensure slow wear rate providing stable idel, superior anti fouling, improved fuel efficiency and lower emissions.... NGK Double Platinum Spark Plug for Audi/VW Box of 4 (PFR6Q) 1996-2005 Audi A4 Base $68.20 |
 IN STOCK 6418The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® the ideal choice for any performance enthusiast. Iridium's high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.... NGK Iridium Spark Plug Box of 4 (BKR6EIX) 1996-2005 Audi A4 Base $54.25 |
 IN STOCK 95159NGK Ruthenium HX is designed for newer engines which demand high ignitability. Double Fine Electrode (DFE) design promotes spark energy concentration and ignites a wider range of air-fuel ratios, offering improved performance in rich or lean engine conditions.... NGK Ruthenium HX Spark Plug Box of 4 (FR6BHX-S) 1997-2001 Audi A4 Base 1998-1998 Audi A4 Avant $66.88 |