
China Factory for BMW M135I High Performance SS304 Decat Downpipe. SS304 Stainless Steel: Constructed from high-quality 304 stainless steel for durability and corrosion resistance. Performance Enhancement: Reduces back pressure to increase power and torque while lowering thermal load on the turbocharger. Customization Available: We can custom products according to your drawing or sample to help build your own brand. 1-Year Warranty: 12 months warranty covering quality problems due to manufacturing defects with free fix or replacement. ISO9001 Certified: All products comply with ISO9001 standard ensuring consistent quality control. Fast Shipping: Most items are kept in stock for fast shipping to meet urgent demands. 15+ Years Experience: Manufacturer with over 15 years of experience in performance parts for BMW and other brands.