Optimized Performance: Specifically designed for models 394, 395, 394xp, and 395xp, this muffler stud kit significantly improves exhaust efficiency and engine performance. Construction: Crafted from high-quality materials, the kit ensures a tight seal and long-lasting reliability, preventing exhaust leaks and noise. Easy Installation: The kit includes all necessary components for a hassle-free installation, allowing for a and immediate enhancement of muffler efficiency., Weight: 1.10892517786 pounds, Manufacturer: Prterver