Mercedes AMG 5.5L BiTurbo Downpipe with Cat Delete Mercedes AMG 5.5L BiTurbo Downpipe with Cat Delete / CLS63 (W218)/ E63 (W212) Click image to enlarge Description Mercedes AMG 5.5L BiTurbo Downpipe with Cat Delete *fits CLS63 (W218) and E63 (W212) Description Mercedes AMG 5.5L BiTurbo Downpipe with Cat Delete *fits CLS63 (W218) and E63 (W212) Made of T309 (1.4828) Grade Stainless Steel and Hand-polished to a mirror finish. The CAPRISTO valved exhaust system helps low rpm torque by providing back pressure in the exhaust, and raises temperature for good catalytic converter operation. While in the open valve condition for high rpm, it takes full advantage of the free flow characteristics of the CAPRISTO Downpipes optimizing the high energy exhaust at the ideal temperature and back pressure to maximize performance. These cat delete downpipes can be easily fitted to a CAPRISTO exhaust systems or any system that fits directly to the OEM exhaust. *Recommended For Off-Road and Track Use Only* Replacing Your OEM Catalytic Converter/s may trigger a CEL (Check Engine Light). To disable a recurring CEL you will need to tune the ECU or use 02 Sensor Extensions.. Pictures sell! Auctiva offers Free Image Hosting and Editing.250+ Listing Templates! Auctiva gets you noticed! The complete eCRATER Selling Solution. Track Page Views WithAuctiva's FREE Counter