Introducing our high-performance GY6 Exhaust Kit, specifically designed for maximum compatibility with GMB139 Engine models ranging from 50cc to 150cc. Whether you own a Moped, Quad 4 Wheeler, Dune Buggy, ATV, or Go Kart, this 8MM Gasket Kit is the perfect solution to enhance your vehicle's performance.Crafted with precision and engineered to perfection, our GY6 Exhaust Kit ensures optimal exhaust flow, resulting in improved power and torque delivery. The compatibility with various engine capacities, including 50cc, 70cc, 90cc, 110cc, 125cc, and 150cc, makes it a versatile choice for a wide range of vehicles.Featuring a durable construction, this exhaust kit is built to withstand the rigors of off-road adventures and deliver long-lasting performance. The included 8MM Gasket Kit ensures a tight seal, preventing any leaks and optimizing the overall efficiency of your engine.Upgrade your ride today with our GY6 Exhaust Kit, compatible with GMB139 Engine models. Unlock the true potential of your vehicle, experience enhanced power and efficiency, and enjoy an exhilarating ride like never before. Don't settle for ordinary when you can have extraordinary with our top-of-the-line exhaust kit.Invest in quality, invest in performance – choose our GY6 Exhaust Kit and take your riding experience to the next level.