Ultimate Racing BMW N54 RHD High-Flow Catted Downpipes - 200 Cell Metal Substrate Sports Cats, 304 Stainless, Bolt-On - E82 E88 E90 E91 E92 E93 135i/335i - TIG Welded - Part 600031R

Ultimate Racing RHD N54 Sport Cat Front Pipes for E Chassis 135i and 335i - Part 600031R

Give your twin turbo straight six the flow it deserves. These right hand drive sport catalytic turbo outlet pipes deliver a serious performance uplift on BMW E-series 135i and 335i models with the N54 engine. Built from full 304 stainless with precise hand TIG welding and OEM sensor provisions, they are a true plug-and-play upgrade that sharpens response, improves spool and releases extra power without compromise. Part number 600031R.

Why enthusiasts choose this upgrade

• Real gains you can feel - independent testing on a stock car showed over 20 whp increase with the 200 CPSI metal substrate cats
• Sports catalytic converters for high flow and strong midrange while keeping sensors in the correct locations
• Direct fitment to factory V-band connections - no cutting or fabrication required
• Durable 304 stainless construction with smooth, precision welds for long service life
• Plug-and-play with OEM oxygen sensors - designed for a clean, trouble-free install
• No map change required
• Designed and manufactured in North America

Proven performance

Back-to-back dyno figures on an Ultimate Racing 335i N54, untuned:

• Completely stock - 273.30 whp / 272.95 ft.lbs
• With Ultimate Racing 200 CPSI sport cat front pipes - 295.47 whp / 294.49 ft.lbs
• For reference, Ultimate Racing catless version - 301.18 whp / 297.98 ft.lbs

Key details

• Material - full 304 stainless steel
• Catalysts - 200 cell metal substrate high-flow sports cats
• Fitment - 100 percent bolt on, V-band turbo side
• O2 bungs - factory positions retained
• Welding - high quality TIG
• Tuning - not required
• Typical gain - 20 plus wheel horsepower on a stock vehicle
• Part number - 600031R

Vehicle compatibility - right hand drive N54

• BMW 1 Series E82 and E88 135i N54 - 2006 to 2011 - RHD
• BMW 3 Series E90 E91 E92 E93 335i N54 - 2005 to 2013 - RHD

Important: Suits rear wheel drive models only. Not suitable for XI or xDrive all wheel drive variants.

Fitting components required

To complete installation you will need the following factory parts:

• 2x Genuine BMW N54 N55 N63 S63 V-band exhaust clamp - includes 1M, M2, 335i and Z4 35is
• 2x Genuine BMW N13 N54 N55 S55 turbo outlet gasket - turbo side - includes 1M, M2 Competition, M3, M4, M135i, 135i, 335i and Hybrid 3
• 1x Genuine BMW N54 N55 E60 E88 E90 downpipe gasket kit - includes 1M, 135i, 335i and 535xi

Professional fitting

Need it installed properly first time We can help. MJ Modifications offers expert fitting at our Warwickshire workshop. Request a quote at info@mjmodifications.co.uk.

Pre-dispatch compatibility check

For peace of mind, we confirm fitment before shipping. Add your UK registration or the last 7 of your VIN at checkout and we will verify compatibility.

Manufacturer

Ultimate Racing

Feedback from our customers

We have fitted these Ultimate Racing sport cat turbo outlet pipes to multiple customer 135i and 335i vehicles, and the response has been consistently positive regarding build quality, fitment and the noticeable performance bump. A trusted RHD solution for E82, E88, E90, E91, E92 and E93 N54 owners seeking a premium 200 CPSI sports cat upgrade.

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