BDDP 8198 ACCEL HP Copper Spark Plug - Shorty - Fits 1990-1991 Audi V8 Quattro

14mm Thread - .460 in Reach - Tapered Seat - 2 pack of 0574S-4

ACCEL's patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around. ACCEL Shorty Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL Shorty Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.

Features and Benefits: Copper Core Center Electrode; Eliminates Dimpling Headers For Added Clearance; Helps Eliminate Burned Spark Plug Boots; Improves Spark Plug Access To Fit Socket Or Wrench; Projected Tip; Shorter Overall Plug Length Vs. OE Style Plug; Shorty Header Spark Plug; Shorty Spark Plugs For Tubular Exhaust Headers

****Not Compatible with 90 Degree Ceramic Plug Wire Boots****

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