After 12 long years, an affordable SMIC set that performs. Made by enthusiasts, for enthusiasts. These come with a limited lifetime warranty against leaks or core failure. Please allow up to 5 business days for your order to ship. Once an order is placed for this product, there is a 30% restocking and raw materials fee for any cancellations. Each set is made to order! THIS PRODUCT IS FOR OFF ROAD USE ONLY. Fits both s4 and rs4 models from 2000-2002 and ALL other vehicles using the 2.7T engine with little to no cosmetic modification. There will be no tabs for shrouds attached unless specifically requested at the time of purchase. (bi pipes pictured, not included. Shrouds have been discontinued due to zero performance gains). Our inlets/outlets measure 2.5" and core measures 10x8x4.5