SKU
TNEER-MERC-CLS63-W218-AMG-VALVE
Brand

TNEER Valvetronic Exhaust System for Mercedes-Benz AMG W218 CLS63 2011-2018

$4,300.00
Preorder

(Fits- Mercedes-Benz AMG W218 CLS63 2011-2018)

Brand
Clear
For items that are not maintained as regular inventory and are fulfilled either as made-to-order or special order from the manufacturer, we will provide confirmation of the estimated lead time and other applicable order details once you place your order. If you require delivery by a specific date, you must contact us prior to placing the order to verify that Creative Mods can accommodate your requested timeline.
  • Guaranteed Safe CheckoutClick to see all payment options
  • Inquire now

TNEER Valvetronic Exhaust System for Mercedes-Benz AMG W218 CLS63 2011-2018

The Mercedes-AMG CLS63 W218 is built around a front-mounted 5.5-litre twin-turbocharged V8 producing 518 horsepower in the standard configuration and 557 horsepower in the S specification, the M157 engine that represents AMG's high-displacement twin-turbocharged V8 in the four-door coupe body that defined the CLS segment. The CLS63's four-door fastback architecture and front-engine rear-wheel drive layout create exhaust routing requirements specific to the W218 platform, with extended primary runs through the transmission tunnel and underbody that demand precise tube geometry across the full system length. TNEER engineers this valvetronic system specifically for the CLS63 AMG W218, with mid X-pipe placement and mounting geometry developed to the exact chassis layout of the platform across its full production run.

Each section is formed from single-piece high-grade stainless-steel tubing using robotic pipe bending technology, producing continuous tube geometry throughout the system without the weld joints and flow disruptions of multi-segment construction. The mid X-pipe cross-links both exhaust banks at the mid-system junction, balancing pulse energy between the V8's cylinder groups. On a twin-turbocharged V8 platform, mid-system scavenging through an X-pipe contributes to exhaust flow efficiency and tonal coherence across the rev range, allowing the full character of the M157 V8 to express itself more completely through the system at every engine speed. The system installs to all factory mounting locations, requiring no structural modification and maintaining correct chassis alignment throughout. The hand-crafted quad silver tips complete the system at the rear fascia, each tip finished individually to a standard that reflects the level of craft applied to the rest of the system.

The valvetronic rear mufflers are managed through the TACS, TNEER's proprietary App Control System, which gives the driver full manual authority over valve position through a dedicated application interface independent of driving mode or vehicle operating condition. Valves closed, the system maintains a composed tone appropriate for road use while presenting more of the twin-turbocharged V8's character than the factory exhaust allows at any throttle position. Valves open through the TACS, the full acoustic output of the CLS63's M157 5.5-litre twin-turbo V8 is unobstructed and responds directly to throttle input and engine speed. The tonal difference between the standard CLS63 and S specification at full output reflects each variant's specific state of tune, and the TACS makes that acoustic experience available on demand at any time regardless of driving mode on every drive.

Optional Downpipe Configurations

For owners who want to address the primary restriction point in the exhaust path, TNEER offers two downpipe specifications that deliver meaningful performance and acoustic improvement beyond what the mid X-pipe and valvetronic muffler system alone provides.

  • The race downpipes remove the factory catalytic converters immediately downstream of the turbocharger outlets, where back pressure reduction has the most direct effect on turbine behavior, spool characteristics, and mid-range torque delivery. On the M157's 5.5-litre twin-turbocharged V8 architecture, the relationship between downstream restriction and turbocharger efficiency is immediate and measurable at every point in the rev range. These components are intended for closed course and off-road use.
  • The 200-cell sport downpipes retain a high-flow catalytic substrate in place of the factory units, reducing restriction significantly while maintaining a level of emissions compliance appropriate for street-driven builds. For CLS63 AMG W218 owners who require a balance between full-system performance and daily usability, the 200-cell specification delivers a substantive upgrade within a practical operating profile.

All downpipe components are fabricated from high-grade stainless steel and engineered to the same fitment standard as the valvetronic muffler system.

About TNEER:

TNEER is built around a single engineering conviction: the exhaust system is not a peripheral component. It is the primary interface between the engine and the driver's experience of it. Every system TNEER produces is developed to bring out the true voice of the engine it is built for, improving exhaust flow and delivering a distinct tone that is mechanical, raw, and directly connected to the character of the car.

The manufacturing process that defines TNEER's fitment standard is their high-tech robotic pipe bending technology. Rather than fabricating exhaust routing from multiple welded sections, TNEER forms each tube from a single continuous piece, bending high-grade material to navigate the spatial constraints of each specific engine bay without the diameter reductions, flow disruptions, and structural inconsistencies that welded multi-piece construction introduces. The result is an exhaust system with continuous tube geometry, perfect fitment to the platform it is built for, and no compromises in the routing that precision bending makes unnecessary.

For enthusiasts who regard sound and performance as inseparable elements of the driving experience, TNEER engineers each system to deliver both from the first throttle input.

Note:

  • Downpipes are not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only.
  • ECU tuning may be required due to removal of factory catalytic converters.

Fitment:

  • Mercedes-Benz AMG W218 CLS63 2011-2018

Brand