BenzUnited Parts
BenzUnited 4" Intake Kit + M133 Air Box Extension for CLA45 & GLA45 AMG
BenzUnited 4" Intake Kit + M133 Air Box Extension for CLA45 & GLA45 AMG
Regular price
$449.00 USD
Regular price
Sale price
$449.00 USD
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This complete M133 intake system combines a 4" high-flow K&N intake with a Cerakote-finished air box extension for the CLA45 and GLA45 AMG. It delivers significantly increased airflow, lower intake air temperatures, faster turbo spool, and a more aggressive turbo sound while maintaining excellent fitment and reliability.
Key Features & Benefits
- 4" High-Flow K&N Intake — Reusable cone filter and 3D-printed heat-resistant tube for maximum airflow
- Cerakote Air Box Extension — Seals against the hood to draw in colder, denser air and reduce heat soak
- Laser-Cut Aluminum Turbo Flange — Precision 3-bolt connection for a strong, leak-free seal
- Lower Intake Air Temperatures — Improves turbo efficiency and supports higher power builds
- Direct Bolt-On Fitment — No cutting or modifications required on 2014–2019 CLA45 / GLA45
Compatibility
| Model | Years | Chassis |
|---|---|---|
| CLA45 AMG | 2014–2019 | C117 |
| GLA45 AMG | 2015–2019 | X156 |
Frequently Asked Questions
Will this require tuning?
It works on stock vehicles, but tuning is highly recommended to take full advantage of the increased airflow.
Is this compatible with the M139 (45 S models)?
No — this system is designed specifically for the M133 engine (2014–2019 models).
How much power can I expect?
10–15+ HP potential on tuned vehicles, with even greater gains on big builds up to 500+ whp.
BenzUnited Parts • Premium M133 Intake System • Ships Fast
