Stainless Steel Headers for M156 - 63 AMG Engines mercedes-benz-e-class-wagon--212---2010-2013--e63-amg--2010-2011--esr5958650 +11 HP / + 10

+11 HP / + 10 LB-FT

00 sec 119 mph W212 - E63 AMG S 4MATIC Sedan  ECU+ Upgrade w/Launch Control 3

Our performance and sound pipes with integrated x-pipe bypass the stock Mercedes resonators for more volume and a better sound

R3 Performance Package for Mercedes-AMG GLS 63: ECU Upgrade (HHT)

Rated by RENNtech:               435 HP @ 5

Stainless Steel Headers for M156 - 63 AMG Engines mercedes-benz-e-class-wagon--212---2010-2013--e63-amg--2010-2011--esr5958650 +11 HP / + 10RENNtech Stainless Steeel Exhaust Headers for M156 63 AMG Engines. 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 substantial gains across