Motorcycle Exhaust Escape Pipe adapter 60-51mm 51-38mm connect Reducer extra Muffler Stainless Steel install accessory and tools - AliExpress
Amazon.com: Aramox Car Exhaust Collector, 2‑1 Adapter Stainless Steel Exhaust Merge Collector Dual 3in ID Inlet Single 3in OD Outlet for Car : Automotive
Bonneville Muffler Adapters - Angled 1.5
Triumph Bonneville Exhaust Muffler adaptors for that Classic styling and upsweep Nostalgic stance – Carpy's Cafe Racers
Emgo Muffler Adapters - 80-03255 Motorcycle Goldwing - Dennis Kirk
Silverline Exhaust DCK4 Silverline Universal Exhaust Adapters | Summit Racing
REV9 3" MUFFLER DELETE AXLE BACK, INCLUDES 2.5-3.0 ADAPTERS & CLAMPS, 10-15 CAMARO SS - Modern Muscle Salvage
Amazon.com: Set of 2 - Exhaust Pipe/Muffler Adapter Reducer Sleeve Adapters (1.5", 1-5/8", 1.75") : Automotive
Amazon.com: DC Sports EX-5016 Performance Bolt-On Resonated Exhaust Muffler with Clamps and Adapters for Universal Fitment on Most Cars, Sedans, and Trucks - Polished Stainless Steel : Automotive