Stainless Steel Headers for M156 - 63 AMG Engines mercedes-benz-gle-class--167---2021-present--gle-450-esr3392660 The RENNtech Sport Muffler System

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

Air Tight Seal Heavy duty lid seal locks in the cold

493 HP @ 6

the user can toggle a switch to load the factory or the adjusted ride height

ML 350 (W164) Stock Performance:

Stainless Steel Headers for M156 - 63 AMG Engines mercedes-benz-gle-class--167---2021-present--gle-450-esr3392660 The RENNtech Sport Muffler SystemRENNtech 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