M133 4" Intake Upgrade Kit – CLA45 GLA45 AMG Cold Air Intake

Unlock Sharper Throttle Response, Cooler IATs & Aggressive Turbo Whoosh – Built for 500+ WHP Builds

Transform your CLA45 or GLA45 AMG from factory-restricted to track-ready with the BenzUnited M133 4" Intake Upgrade Kit. Massive airflow + reduced heat soak = faster spool, more power, and that addictive AMG turbo soundtrack you've been craving.

🔥 Why This Intake Delivers Real Results

• +10–15 HP Gains on tuned M133 setups – proven airflow improvements for consistent boost and power delivery.
• 4" K&N High-Flow Cone Filter – pulls in massive CFM while staying durable and easy to service.
• 3D-Printed Heat-Resistant Intake Tube – lightweight polymer design keeps charge air cooler vs. stock plastic restrictions.
• Laser-Cut Aluminum 3-Bolt Flange – OEM+ fitment with rock-solid seal at the turbo inlet for zero leaks.
• Optional Airbox Extension – seals against the hood for colder, denser air – especially effective on CLA45 (verify GLA45 clearance).
• Insane Induction Sound – hear the turbo spool, flutter, and aggressive whoosh every time you get into it.

⚡ Performance You’ll Feel Every Drive

The factory M133 intake chokes your turbo with small piping and heat-soaking plastic. This kit fixes that – flow-tested to crush OEM restrictions.

• Quicker turbo spool & reduced lag – sharper throttle response off the line.
• Lower intake air temps (IATs) – more consistent power, especially in hot LA traffic or track sessions.
• Better cruise efficiency + supports big builds (downpipes, intercooler, tune, hybrid turbo → 500whp ready).
• Deeper, throatier AMG 2.0T soundtrack without drone.

💡 Why M133 Owners Upgrade

Stock intake = bottleneck. Heat soak kills boost stability and power. This CLA45 / GLA45 intake upgrade gives immediate airflow, cooler air, and turbo sound – the foundation for any serious M133 build. Pair it with your tune for max results.