BMW N55 Catless Downpipe w/ Bracket - E82 135i / E90 / E92/93 335i

Unleash the true potential of your N55 engine with the Catless Downpipe w/ Bracket, designed for the E82 135i and E90/E92/E93 335i. The factory downpipe’s catalytic converter restricts exhaust flow, creating backpressure that limits power and dulls turbo response. Upgrading to a catless design eliminates this restriction, resulting in noticeable horsepower and torque gains, quicker turbo spool, and a louder, more aggressive exhaust tone.

This downpipe is constructed from high-quality T304 stainless steel with smooth mandrel bends and precision welds for maximum durability and performance. The included mounting bracket ensures a perfect OEM-like fit, keeping the system secure under high-boost conditions. Whether you’re running the stock exhaust or an aftermarket setup, this is one of the most effective performance upgrades for your N55-powered BMW.

✅ Big performance gains – increased horsepower and torque
✅ Faster turbo spool – reduced lag and sharper throttle response
✅ Aggressive exhaust tone – deep, raw turbo sound
✅ T304 stainless steel construction – strong, durable, and corrosion-resistant
✅ Includes OEM-style mounting bracket – perfect fitment and long-term reliability
✅ Direct bolt-on – works with stock or aftermarket exhausts

Fitment:

• BMW E82 135i (2011–2013, N55)

• BMW E90 335i Sedan (2011)

• BMW E92 335i Coupe (2011)

• BMW E93 335i Convertible (2011)

⚠️ Note: For off-road/track use only. May cause a check engine light (CEL) without proper tuning.