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.