CTS Turbo is proud to announce the release of our 3″ High-Flow for the Mercedes-Benz W205 C63/63S. Performance was our main focus for these downpipes. We have them wrapped in shielded material to help keep the heat in the exhaust for and out of the engine bay. Now you can drive your M177 for longer and harder without the worry of excessive heat. You’ll notice the improved spool and throttle response. Designed using the latest in CAD technology; this part is made to fit perfectly in place of restrictive factory catalytic converter. Manufactured from CAST T304 stainless steel; hand TIG welded and back-purged to ensure years of reliable performance. Another benefit is the improved sound, providing a louder and deeper tone, which sounds mean and wonderful at the same time. 3″ downpipes with 200 cell high-flow catalytic converters Bolt-on install, no welding required Hand-crafted from 304 Stainless Steel tubing OE-style heatshielding to keep the temperatures down TIG welded and back-purged Improved power Beautiful exhaust sound Quicker spool and throttle response. Reuses OEM mounting points