AISI 304 NOT CHINA!!! We accept calls from 10:00 to 23:00MANUFACTURE OF PIPES. Downpipe Gen 3 made of high-quality stainless steel AISI 304. Pipe diameter 76mm, wall thickness 2mm, transition to standard pipe. Installs without modifications instead of factory pipe. Fits on cars: AUDI A4/A5 B9 2.0 TFSI, AUDI Q5 FYB FYG, A5 F57 F53, AUDI A6 Suitable for AUDI A4/A5/Q5 (B9) and AUDI A6/A7 C8 with 2.0 TFSI Gen3 engines.Cross-reference numbers: 8W0254252NX, 8W0254253X, 8W0254253X, 8W0254253C, 8W0254253CX, 4M0254252EX, 4M0254252GXWe can also make a pipe for an IS38 turbo with round flange!