Milltek Sport Exhaust Secondary Cat Delete/Decat (Catless) Mid-Pipes for BMW 3 Series 335i E92 Coupe 2006-2013 RWD Only - T304 Stainless Centre Section Catalyst Replacement - N54/N55 - SSXBM014 - Not xDrive

SSXBM014 Secondary Cat Replacement Pipes - BMW 3 Series E92 335i Coupe 2006-2013 - Rear-Wheel Drive

Give your E92 335i the tone and flow it deserves with these UK-engineered secondary catalyst replacement pipes in premium 304-grade stainless steel. Designed for the rear-driven BMW 335i Coupe on the E92 chassis, this mid-section upgrade replaces the secondary converters to unlock a deeper, sportier sound and quicker response while keeping refinement on the motorway.

Crafted from austenitic T304 stainless with smooth mandrel-formed tubing, this free-flow centre section improves gas velocity, resists corrosion and heat cycling, and is built to last. The result is a sharper throttle feel, stronger pull through the rev range and a clean, crisp exhaust note without the dreaded cabin boom.

• Part number: SSXBM014
• Vehicle: BMW 335i E92 Coupe 2006-2013 - RWD models only
• Excludes: xDrive versions
• Construction: T304 stainless steel, mandrel-bent for consistent internal diameter
• Function: Secondary cat replacement pipes for improved flow and a richer soundtrack
• Finish: UK-made, precision engineered with excellent corrosion resistance

Why enthusiasts choose this mid-pipe upgrade

These secondary cat replacement pipes are a proven, high-quality enhancement for the E92 335i centre section. Larger-than-OE bore and smooth-radius bends reduce back pressure and help the turbocharged straight-six breathe more freely. We have fitted this setup in-house and the feedback from our customers has been consistently positive on fit, tone and day-to-day drivability.

Key benefits

• Noticeably fuller exhaust note with refined volume and minimal drone
• Improved throttle response and freer-revving character
• Durable, non-magnetic stainless steel that shrugs off UK weather
• Designed and developed in the UK to complement the wider system

Compatibility

• BMW 3 Series E92 335i Coupe - model years 2006 to 2013
• Rear-wheel drive only - not suitable for xDrive
• Replaces secondary catalytic converter sections
• Milltek part number SSXBM014

Fitting and support

Professional installation recommended. MJ Modifications in Warwickshire offer fitting and setup. Request a quote at info@mjmodifications.co.uk.

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