Wagner Tuning BMW N55 Catted Downpipe/Front Pipe – 200 Cell Sport Cat, 304 Stainless – E82 E88 135i, E90 E91 E92 E93 335i/335xi – High-Flow Bolt-On Exhaust Upgrade (1 Series/3 Series)

High-flow catted front pipe for BMW 135i and 335i N55 engines

Unlock smoother exhaust flow and sharper throttle response on your E-series 1 Series or 3 Series with this premium high-flow front section featuring a 200 cell sports catalytic converter. Fabricated from 1.4301 grade stainless steel (304), it replaces the restrictive factory front pipe to lower exhaust back pressure, help reduce turbine temperatures and deliver noticeable gains in power and torque on turbocharged N55 cars.

Designed as a direct, bolt-on swap for the original component, this OE-style replacement retains factory-style fitment for a clean, hassle-free install. The result is a durable, corrosion-resistant upgrade that supports performance tuning while maintaining a refined finish.

Key features

• 1.4301 stainless steel construction for strength and longevity
• 200 cell sports cat for improved flow compared to the stock catalyst
• Direct replacement for the factory front pipe with OEM-style fitment
• Reduced exhaust restriction to free up horsepower and torque
• Helps lower thermal load on the turbocharger under hard use

Vehicle compatibility

This high-flow catted front pipe fits the following N55-powered E-series models:

• BMW 135i E82 and E88
• BMW 335i and 335xi E90, E91, E92 and E93

Why choose this upgrade

Ideal for enthusiasts seeking a performance exhaust upgrade for their N55 without compromising everyday drivability. Expect faster spool characteristics and stronger midrange performance thanks to reduced exhaust gas resistance.

Installed and recommended by MJ Modifications

We have fitted this upgrade in-house and our customers have been delighted with the quality and results. For professional installation, book with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

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