BAR-TEK® Catless downpipes suitable for BMW F9x S63B44

Plug'n'Play downpipes without pre-cat suitable for the BMW M-series with S63B44 Engine like e. g. in the M5 and M6. Genuine plug'n'play downpipes for easy replacement - a significant increase in performance and a whole lot more sound. The 76 mm downpipe completely without catalytic converter significantly reduces the back pressure and relieves the turbo. This results in more power and lower exhaust gas temperature. By retaining the original flanges and connections, the downpipes fit the turbos perfectly and without modifications. Features: Pipe guide size upper and lower downpipe made from 304 stainless steel TIG welded suitable for original AGA and many accesories systems Vorkat lambda sensors and sensors must be switched off by software (e.g. with MHD). The downpipes are not road legal. The installation of performance-enhancing components requires careful handling and specialised knowledge. The engine and the entire drivetrain must be in a performance-compliant condition.