- Effective solution for tight tolerance manifolds and engine bays with limited room or heat-heavy under-hood environments. These spark plug wire sets prevent burnt and melting boots and maintain reliable ignition performance. - Fitment: Spark plug wire set compatible with Cadillac, Chevy, and GMC vehicles. Models include: Cadillac: 2006-2007 CTS; 2007-2008 Escalade ESV/EXT Chevy: 2007-2008 Avalanche; 2005-2008 Corvette; 2008 Express 1500/2500/3500; 2006-2008 Impala; 2006-2007 Monte Carlo; 2007-2008 Silverado 1500/2500HD/3500HD; 2005-2006 SSR; 2007-2008 Suburban 1500/2500; Tahoe; 2006-2008 Trailblazer EXT GMC: 2005-2008 Envoy XL; 2008 Savana 1500/2500/3500; 2007-2008 Yukon XL 1500/XL 2500; 2007-2008 Sierra 1500/2500HD/3500HD and more. See main image for full compatibility details. - Part Number: 9070C. Spark plug wire set compatible with LS Terminals LS3/LS4/LS7 LT engines. - High-Performance Ceramic Design: Ceramic boots withstand up to 2000°F, delivering reliable performance in racing or high-temperature street applications. - Why this matters: Improves ignition reliability in hot under-hood conditions, reduces risk of boot damage, and supports consistent engine performance in demanding environments. - Use scenarios: 1) Performance cars with tight engine bays and high under-hood heat. 2) Racing or high-performance street builds in hot climates. 3) SUVs, pickups, or RVs with elevated under-hood temperatures where boot protection is needed.