CTS Turbo Catless Downpipe BMW N55

🔧 CTS Turbo Catless Downpipe – BMW N55 (Pneumatic Wastegate)

Maximize power and unleash true performance from your N55-powered BMW with the CTS Turbo Catless Downpipe, engineered specifically for models equipped with a pneumatic wastegate. Designed to replace the restrictive factory downpipe, this upgrade significantly improves exhaust flow for enhanced horsepower, torque, and throttle response.

✅ Key Features:

• Premium T304 Stainless Steel – Durable, corrosion-resistant, and built to withstand extreme heat

• Precision TIG Welded & Back-Purged – Ensures superior strength and long-term reliability

• Optimized Flow Design – Reduces backpressure for faster turbo spool and improved efficiency

• Aggressive Exhaust Tone – Subtle when cruising, sporty and bold under load

• Drone-Free Experience – Maintains comfort with the stock exhaust system

• CAD Engineered – Perfect fit with factory exhaust connections and mounting points

• Real-World Tested – Fitment and performance verified on actual vehicles

📌 Application Guide:

• 2012–07/2013 BMW F30 335i & 335xi (N55 – Pneumatic Wastegate)

• 2012–07/2013 BMW F20/F21 M135i & M135xi

⚠️ NOTE:
BMW 135i or 335i models produced after 07/2013 require the 4″ downpipe for N55 EWG models.
This product is for off-road use only.

🔧 Tuning Recommendation:

To avoid a Check Engine Light (CEL), Stage 2 tuning software is required. We strongly recommend using Bootmod3 or similar tuning platforms compatible with catless setups.

🏁 Why Upgrade?

The factory downpipe on N55 engines equipped with a pneumatic wastegate is highly restrictive. By replacing it with the CTS Turbo Catless Downpipe, you unlock:

• Faster turbo spool

• Up to 30HP gains (with tune)

• Sharper throttle response

• A deeper, more defined exhaust note