Stainless Steel Headers for M156 - 63 AMG Engines (216-CL / 221-S) range-rover--322-lm---2009-2012--5-0l-supercharged-v8--aj133--esr9160116 RPM Tuned: 637 HP |

RPM Tuned: 637 HP | 625 LB FT

With increased engine performance it becomes necessary to further improve the drive line components

0L Biturbo):

Dyno measured by RENNtech:               524 HP @ 5

Stainless Steel Headers for M156 - 63 AMG Engines (216-CL / 221-S) range-rover--322-lm---2009-2012--5-0l-supercharged-v8--aj133--esr9160116 RPM Tuned: 637 HP |RENNtech Stainless Steeel Exhaust Headers for M156 63 AMG Engines (216 CL 221 S). Gaines: +11HP & 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