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Ships within 48 hours · Estimated delivery Sep 11 - Sep 16
687 wtq @ 4
Our ECU tune offers the biggest performance gains on the market with our dyno results increasing performance from 329 HP and 354 lb/ft torque
Note: Mercedes M157 engine performance when measured
5L V8 BiTurbo
Our intermediate level ECU upgrade for the Mercedes M278 engine still offers huge gains in performance across the entire RPM range
RENNtech Stainless Steel Sound and Performance Pipe for 221 - S 63 AMG porsche-cayenne--9pa----1-gen--cayenne-s-esr4197557 687 wtq @ 4RENNtech 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.
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