N55 Downpipe For BMW 535i/ 640i/ 740i/ X5/ X6 (EWG & PWG)

The N55 Downpipe by Palenon Performance is a high-quality aftermarket downpipe designed for F Chassis BMW 535i, 640i, 740i, X5, X6 equipped with the N55 engine having either EWG or PWG. Features Material: Constructed from SS304 grade stainless steel, ensuring durability and resistance to corrosion. TIG-welded craftsmanship enhances strength and reliability. Performance Gains: Eliminates the restrictive factory catalytic converter, reducing back pressure. Gains of 25–30 horsepower with a supporting tune. Faster turbo spool and improved throttle response. Produces a more aggressive exhaust tone. Design: 3.5" and 4″ full stainless steel tubing for optimal flow. Smooth radius bends to reduce turbulence and maximize exhaust flow. Includes CNC-machined flanges for a precise fit. Compatibility: Two O2 sensor bungs positioned to allow reinstallation of OEM sensors without wire stretching. Requires a tune or CEL delete to prevent check engine lights after installation. Wa