Connect 2 1/4" OD exhaust pipe to 3" OD exhaust pipe, Transit 2 1/4" Exhaust into 3" Exhaust Connect 3" Exhaust Headers to 2.25" exhaust system, Reduce 3" Exhaust to 2.25" Exhaust Performance Reducer Flange in CONE shape, Smooth Transition, enable the maximum flow to exhaust Quick Release Clamp make exhaust SEPARABLE for further modifications Fantastic Sealing, Leaking-Free can be achieved if welded nicely Full Stainless Steel in Thick Gauge, Heavy Duty, 2 Years Warranty Guaranteed Way of Assembly - WELD ON PACKAGE INCLUDE: A, 1 X Cone-Shaped 3 to 2.25 Inch Transition Male Flange; B, 1 X Standard 3" Female Flange which Interlock to the Transition Male Flange; C, 1 X Quick Release V-Band clamp with M8*1.25 Bolt & High Tempreture Resisted Nut MATERIAL: Quick Release V-Band Clamp: T304 Stainless Steel Reducer Flange Assembly: T304 Stainless Steel SUGGESTED APLICATION: Connection of 3" OD exhaust pipe with 2.25" OD exhaust pipe Connection of 3" Exhaust Headers to 2 1/4" exhaust system ADVANTAGE: Quick Release V-Band Clamp TURN exhaust system INTO SECTIONS, SEPARABLE and WORKABLE for further modifications at any time. MAY NOT SUIT Turbo applications, Turbo users please Check Our Flange Size before purchase FLANGE SIZE: 3" ID to 2.25" ID, both flange will GO OVER Exhaust Pipes If you need the Flange to GO INSIDE Components as 3" ID Mufflers Resonators or Exhaust Tips, please check our 2.25" ID to 3" OD Adapter