Flange is 3.75 OD and 304 stainless.
2.5" 3-1/8 OD v band flange .065 304 stainless tig welded turbo exhaust
K&N 85-1160 Adaptor Reducer 2-1/4"ID 2-3/4"OD 2"L ADAPTOR 2-1/4"ID 2-3/4"OD 2"L
Dorman 610-0196.10 3/4 In. 16 Serrated Stud 0.8 In. Knurl, 3.375 In. Length
Dorman 610-0251.10 3/4" 16 Wedge Head Stud 0.784" Body Dia. 3.375" Length
3in OD V-Band Turbo Clamp & 3in Flange Set 304 Stainless Steel Male Female Set
2.5in OD V-Band Turbo Clamp & 2.5in Flange Set Stainless Steel Male Female Set
