RENNtech Stainless Steel Sound and Performance Pipe for 221 - S 63 AMG ferrari-portofino--2017-2020--esr8681940 powerful sound as well as

powerful sound as well as an estimated 40-horsepower gain at the crank

we offer optional stainless steel catless down pipes

Malsanne 6

Carrera 4 GTS Cabriolet

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RENNtech Stainless Steel Sound and Performance Pipe for 221 - S 63 AMG ferrari-portofino--2017-2020--esr8681940 powerful sound as well asRENNtech Stainless Steel Sound and Performance Pipes for 221 S 63 AMG. Gaines: +10HP & 15TQ Our performance and sound pipes with integrated x pipe bypass the stock Mercedes resonators for more volume and a better sound. Combined with RENNTECH's ECU software and stainless steel headers, the sound pipe produces more power in the mid to high rpm range. High strength 304 stainless steel construction ensures lasting quality and a rich, consistent sound.