Original NGK IRIDIUM sports spark plugs TR6-TR7

Compatible with: ✅All GMC - CHEVROLET engines (4.8 - 5.3 - 5.7 - 6.0 - 6.2) LS models 2013 and earlier ✅LS engines 6.0 - 6.2. ✅FORD 4.6 engine. Product specifications and features: 1- Original Japanese manufacturing. 2- Ceramic insulator resistant to rust and sticking. 3- Longer lifespan than factory spark plugs. 4- Improves fuel efficiency. 5- Withstands high temperatures and suitable for high-performance and high-tech engines. 6- Enhances engine performance.