Brisk Premium LGS Spark Plugs are the ultimate spark plug for your naturally aspirated Mustang. These spark plugs feature a unique design which unshrouds the spark allowing the spark to ignite the maximum amount of fuel resulting in complete burning for maximum power and fuel economy. Ready to get the maximum power out of your naturally aspirated Mustang? Put these Brisk Premium LGS Spark Plugs in today!
Notes: Because of heat range and electrode design, we recommend you DO NOT USE THESE SPARK PLUGS FOR SUPERCHARGED, TURBO, OR NITROUS APPLICATIONS. For those applications use our Brisk Silver Racing Spark Plugs. Spark Plugs with a 17 in the part number are recommended for stock to slightly modified applications. Heavily modified naturally aspirated use spark plugs with 15 in the part number.
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