Stainless Steel Headers for M113 Engines mercedes-benz-ml-class--164---2006-2011--ml63-amg-esr1382963 550 RPM | 443 LB-FT

550 RPM  |  443 LB-FT @ 1

The R1 performance package for the Mercedes 600 V12 engines includes our proprietary ECU upgrade

The RENNtech Sport Muffler System for the W222 - S550 Sedan comes with an integrated valve system and utilizes the electronic OEM actuators

454 lb-ft @ 3

Stainless Steel Headers for M113 Engines mercedes-benz-ml-class--164---2006-2011--ml63-amg-esr1382963 550 RPM | 443 LB-FTRENNtech Stainless Steeel Exhaust Headers for M113 55 AMG Engines. Gaines: +15HP & 20TQ RENNTECH stainless steel and ceramic coated exhaust headers offer true bolt on installation, mounting directly to the OE down pipes and all RENNTECH headers are hand built from mandrel bent, seamless tubing and CNC machined stainless flanges. Advanced computer aided design (CAD) and flow analysis software allows RENNTECH headers to deliver substantial gains across