2001-05 CAT-Back Kit 4" (Duramax LB7/LLY)

Unlock the full potential of your 2001-2005 GM/Chevy LB7/LLY with the Sixty-Six 4" CAT-Back Exhaust Kit. Engineered for precision and performance, this exhaust system delivers a notable boost in horsepower and torque, ensuring a smoother and more powerful driving experience. Constructed with high-quality materials, this CAT-Back kit not only enhances your vehicle's efficiency and performance but also produces a deep, resonant sound that car enthusiasts will love. Key Features: Optimized Fit for GM/Chevy LB7/LLY: Specifically designed to enhance the 2001-2005 models, ensuring a perfect integration. High-Quality Construction: Made from superior materials to guarantee durability and resist rust and corrosion. Enhanced Performance: Delivers improvements in horsepower and torque for a more responsive and powerful ride. Distinctive Sound: Engineered to produce a signature deep, throaty exhaust note that enhances the driving experience. Easy Installation: User-friendly design allows for