Set of 8 NGK TR-6 Spark Plugs for LS Engines One heat range colder and our suggested plug for Forced Induction, Mild Nitrous, or High Compression combinations.
This is our recommended spark plug for forced induction, nitrous, high compression or otherwise heavily modified ls engine combinations.
NOTE: If you're running a naturally aspirated, bolt-on, combination, we recommend NGK TR-55 plugs.
Heat range 6, copper core. Also known as NGK V-POWER Part Number 4177.
As the largest OE manufacturer of spark plugs in North America, NGK brings more than 80 years of automotive experience into producing some of the best performing and most reliable spark plugs in the industry. From passenger vehicles to race cars, motorcycles to watercraft, NGK offers high-quality spark plugs for nearly every application.