How to Install Sawicki Speed Shop 2-Into-1 Exhaust on a Harley Milwaukee 8

Exhaust System Overview

• 🎯 The video demonstrates the installation of a Sawicki Speed Shop Mid-Length 2-Into-1 exhaust on a 2020 Milwaukee 8 powered Road Glide.
• 💡 This exhaust system is designed to improve performance, sound, and aesthetics for daily riders, not just race bikes.
• 🚀 Expected gains include approximately 10 horsepower and 12 foot-pounds of torque, when paired with a high-flow intake and tuner.
• ⚖️ Significant weight savings are achieved, with the new system weighing around 17 pounds compared to the stock 40 pounds.

Preparation and Component Removal

• 🛠️ Tools needed include basic hand tools; a lift is not required, and the installation can be done on the floor.
• 🔧 Collar clips on the old exhaust are removed using snap ring pliers or a screwdriver.
• 🔌 O2 sensors are removed using a 14mm wrench; note their length and plug color (gray for rear, black for front) for correct reinstallation.
• 🔩 Two bottom bolts on the transmission bracket are removed to allow for exhaust alignment.

New Exhaust Installation Steps

• 💨 Exhaust gaskets must be replaced; ensure new ones are installed correctly with the thick side facing inward and the narrow side outward.
• 💡 The Sawicki pipe accommodates both stock and wideband O2 sensors using a provided bushing.
• 🔩 Flanges from the old pipe are transferred to the new headers, ensuring the flat part faces down and is secured with a snap ring.
• 🔧 Header pipes are installed first, followed by the collector and muffler, ensuring all components are seated correctly before final tightening.
• ⚙️ The transmission bracket is aligned and bolts are torqued to 20-25 ft-lbs.

Final Assembly and Finishing Touches

• 🔗 A trick bracket is used to mount the muffler, replacing the stock bag bracket.
• 🐎 Muffler springs are installed using a provided tool.
• 🔩 Bolts from the stock muffler are reused to secure the new bracket.
• 🔧 A "dog bone" bracket connects the muffler to the transmission bracket, secured with 5/16 bolts.
• 🔧 Header flange nuts are tightened and torqued to 20 ft-lbs.
• 🔌 O2 sensors are routed along the frame, zip-tied, and connected to their color-coded plugs.
• ✨ Before starting the engine, wipe down the stainless steel pipe to remove fingerprints, which can cause staining when heated.
• ✅ The installation is described as not easy but definitely not hard, realistically taking a couple of hours with hand tools.