BenzUnited Parts
M156 Throttle Body Adapter Plate – 74mm to 82mm Billet Upgrade for AMG
M156 Throttle Body Adapter Plate – 74mm to 82mm Billet Upgrade for AMG
Regular price
$825.00 USD
Regular price
$1,100.00 USD
Sale price
$825.00 USD
Unit price
per
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Upgrade your M156's airflow by converting the factory 74 mm throttle bodies to 82 mm high-flow units for more power and sharper throttle response. This CNC-machined billet adapter plate is engineered exclusively for the Mercedes-AMG M156 6.2L V8, adapting the stock mounting pattern to larger 82 mm throttle bodies to significantly reduce intake restriction — for both naturally aspirated and fully-bolted 63 AMG builds.
Key Features
- Billet aluminum construction: CNC-machined for perfect sealing, durability, and long-term reliability.
- 74 mm → 82 mm conversion: expands throttle inlet diameter for dramatically improved airflow.
- Power gains: with 82 mm throttle bodies and tuning, owners see up to +12 whp / +8 wtq depending on mods and calibration.
- Bolt-on OEM fitment: retains factory throttle motor alignment and intake manifold geometry.
- Optimized for tuned builds: best results with long-tube headers, intake upgrades, and ECU tuning.
Required: 2× 82 mm Throttle Bodies
This adapter plate does not include throttle bodies — you'll need a pair of upgraded 82 mm units for the conversion. Shop 82mm throttle bodies →
Performance Advantages
- Higher top-end airflow for improved peak horsepower on M156 63 AMG engines.
- More responsive mid-range from reduced intake restriction.
- Smoother throttle behavior with a larger throttle blade surface area.
- Future-proof foundation for NA builds or future forced-induction setups.
Fitment Compatibility (M156 6.2L AMG V8)
| Model | Chassis | Engine |
|---|---|---|
| C63 AMG | W204 | M156 6.2L V8 |
| E63 AMG | W211 / W212 | M156 6.2L V8 |
| CLS63 AMG | W219 | M156 6.2L V8 |
| S63 AMG | W221 | M156 6.2L V8 |
| CL63 AMG | C216 | M156 6.2L V8 |
| CLK63 AMG / Black Series | C209 | M156 6.2L V8 |
Build the full M156 setup: M156 intake tubes → | M156 intake spacer kit →
Buy With Confidence
- Free U.S. shipping with tracking on all orders.
- Fitment confirmed before you buy: not sure it fits your exact car or build? Send us your VIN and mod list and we'll verify.
- Mercedes-AMG specialists: we focus exclusively on Mercedes platforms — we know the M156 inside out.
- Real support: questions before or after purchase go straight to us, not a call center.
