SPDZ1 4” N55 Downpipe for BMW M135, M235, M2, 335, and 435

SPDZ1 N55 Performance Downpipe

Unleash the full potential of your BMW

Take your driving experience to the next level with the SPDZ1 4” N55 Downpipe – a high-performance upgrade engineered for BMW enthusiasts who demand power, sound, and seamless fitment. Whether you’re pushing a stock setup or running upgraded turbos, this downpipe is your key to unlocking hidden horsepower and thrilling performance gains.

Why Choose SPDZ1?

✅ Dyno-Proven Performance

Gain up to +30HP on stock turbos, with even greater results when paired with upgraded setups. Experience sharper throttle response, quicker spool times, and aggressive mid-range power delivery.

✅ Optimized for Flow & Sound

Crafted with smooth, mandrel-bent tubing to reduce backpressure and eliminate unwanted cabin drone – giving you the deep, clean exhaust note you crave without sacrificing comfort.

✅ Built to Last

Made from premium-grade materials and backed by our lifetime warranty, the SPDZ1 N55 Downpipe is designed to perform under pressure – on the street or track.

✅ Guaranteed Fitment & Easy Installation

Precision-engineered to bolt directly to your factory or aftermarket system. No modifications, no headaches – just pure performance.

Vehicle Compatibility:

• 2014–2015 BMW M135i / M135i xDrive (produced after 07/2013)
• (ALL) - BMW M235i / M235i xDrive
• BMW M2 (N55 engine)
• 2014–2015 BMW 335i / 335i xDrive (produced after 07/2013)
• (ALL) - BMW 435i / 435i xDrive

Upgrade your exhaust. Elevate your drive.

With the SPDZ1 4” N55 Downpipe, you’re not just replacing a part – you’re redefining your BMW’s performance.