Vibrant 2-Bolt T304 SS Exhaust Flange (3in I.D.) - 1473S NISSAN R31 SKYLINE These are brand new cables

These are brand new cables from Nissan

along with the amount of "anti-squat" of the rear

ethanol content

diameters ranging from 3 to 5

but for a more precise measurement a caliper should be used

Vibrant 2-Bolt T304 SS Exhaust Flange (3in I.D.) - 1473S NISSAN R31 SKYLINE These are brand new cablesVibrant Performance Stainless Steel Exhaust Flanges are available in sizes ranging from 2 to 4 I. D. and a choice of 2 and 3 Bolt configurations. All Flanges are 3 8 (10mm) thick. They can be purchased individually or in cost effective boxes of 5. Vibrant Performance also offers a 4 Bolt flange for oval tubing in sizes ranging from 3 to 4 nominal oval size.