YFTK Flash e-Vapor Extreme Base Kit for FEV 4.5 / 4.5S RTA

 The YFTK Flash e-Vapor Extreme Base Kit is a precision upgrade designed for the Flash e-Vapor FEV 4.5 and 4.5S RTA. This base replaces the original deck, delivering refined airflow control and improved coil positioning for a smoother, more consistent MTL experience. Crafted for enthusiasts who value fine tuning, the Extreme Base enhances flavor density, draw stability, and building comfort—perfect for vapers seeking to unlock the full potential of their FEV atomizer. Whether you prefer a tight cigarette-like draw or a slightly looser MTL vape, this upgrade offers superior customization and performance.